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Getting started: battery owners

About 15 minutes to set up. Each step makes your figures more accurate, and you can do them in any order.

  1. Sign in with your email. Enter your email and we send you a 6-digit code (and a link). Type the code in, or tap the link and press Sign in here. There's no password to remember. Sign in →
  2. Add your home's address. Enter your street address, suburb and postcode. Each address has one account holder; up to four other people in the home can be added later as household members.
  3. Add your home and battery. In Settings, enter your postcode, your electricity distributor (shown on your bill as "network" or "distributor"), your battery's brand and size, the install date and, if you were given one, the yearly saving you were quoted.
  4. Add your bills. Upload a PDF or a photo of each bill, or type the figures in. Add at least one bill from before your battery and one from after, ideally from the same time of year.
  5. Connect your battery. On the Battery tab, connect FoxESS by pasting an API key from FoxESS Cloud (User Profile → API Management). Your daily battery data then updates every night. We only read data; we never change your battery's settings. How to connect FoxESS →
  6. Upload your meter data. Your smart meter's half-hourly data lets us price every plan against how your home really uses power. The Usage tab shows exactly where to get it for your distributor.
  7. Check your plan and VPP. The Plans tab shows the cheapest plans for your usage, and "Compare every retailer" shows what each retailer would cost you. The VPP tab weighs VPP credits against the home use you'd give up.
  8. Time your appliances. On the Appliances tab, add your EV charger, washing machine, dryer, dishwasher and so on. We work out the cheapest time to run each one on your plan, using spare solar first, and post a reminder (the bell at the top) before each good time. Link Shelly plugs or Home Assistant so we can read real power use. You start the appliance yourself, or set its own timer or delay-start: Battery Coach never switches devices on or off.
  9. Check the week ahead. The 7-day forecast (from the Overview) shows how much solar you'll make, what you'll use and buy each day, with tips such as which day to charge the EV. Set your panels' direction and tilt there for a better forecast.
  10. Let us keep watching. Each night we check your battery for problems, and early each month we re-check your plan. You'll see alerts in the app and, if you choose, by email. Change emails in Settings.

Getting started: installers and battery retailers

Give your customers a branded app that shows their battery paying off, and get quote requests from your own calculator link.

  1. Ask us for a pilot. Use the question form below (choose "I'm an installer or battery retailer"). We'll set up your business with your name, logo, brand colour and support email.
  2. Sign in once. Sign in with the email you want to use for the dashboard. We link that account to your business, then you'll see the Installer dashboard at /installer.
  3. Share your invite link. Your dashboard shows a link like /join/your-code. Send it to customers after installation, or print it as a QR code in your handover pack. Customers who join get Coach features included and see your branding.
  4. Share your calculator link. Your calculator link (/calculator?ref=your-code) lets people see what a battery could save them. If they ask for a quote and agree to share their details, the request appears in your dashboard and is emailed to your support address.
  5. Follow up quote requests. Contact each person, then set the request to Contacted or Closed. Use their details only to respond to their request.
  6. Watch your customer numbers. Your dashboard shows how many customers use the app, how many have connected their battery, their average estimated saving, and how many have a battery alert. Customers with an alert are told to contact you.

Questions and answers

For battery owners

Is Battery Coach free?

While we're in beta, every feature is free.

After the beta, comparing every retailer's plans, the savings view, the 7-day forecast and "would solar or a battery pay off?" stay free.

Coach, for homes without a battery, is $3.99 a month or $29 a year: a check every month for a cheaper plan, appliances timed by your plan and the weather, Reports, alerts, and your bills and appliance labels read for you from a PDF or photo (on the free plan you type the bill's figures in). Coach + Battery, for homes with a battery, is $6.99 a month or $59 a year: everything in Coach plus battery forecasts and tips, the VPP check and the battery health report. Cancel any time.

Everyone who tried the beta gets 50% off their first year. If your installer offers Battery Coach, everything is included.

How do appliance reminders use the weather?

For the next three days we take the weather forecast for your panels (how much sun they'll get, half-hour by half-hour), take off what your home usually uses, and what's left is spare solar. Each washer, dryer, dishwasher or car charge is placed where it uses the most of that spare solar and the least from the grid.

If today is cloudy and a sunnier day is coming, you'll get a reminder at your usual time saying it can wait, with the best time today if it can't. Set how long each appliance can wait (same day, 1 day or 2 days) when you edit it. Washers, dryers and car chargers can usually wait up to 2 days; dishwashers 1; ovens, hot water and pool pumps run the same day.

Without a battery, solar you don't use when it's made goes to the grid for the feed-in rate, so running appliances in the sunny hours is the main way to save.

Where do the plans you compare come from, and how up to date are they?

Every residential electricity plan that retailers publish through the Australian Energy Regulator (the same data behind Energy Made Easy), checked every morning. New and changed plans are picked up the next day, and plans that are withdrawn or past their end date stop being offered.

Plans whose prices change with the season (for example dearer in summer) are priced with each season's rates for the days in it, so the yearly cost reflects the whole year. Always check the retailer's own offer before switching: prices can change after we last checked.

Can I subscribe to Coach in the phone app?

Yes, in Settings → Coach, once Coach is paid (it's free during the beta). Depending on your phone, you pay either on Stripe's secure page, which opens in your phone's browser, or through the App Store or Google Play.

Whichever way you subscribe, Coach is on for your account everywhere: the website, the Android app and the iPhone app. Manage or cancel it where you bought it: Settings → Coach shows the right place. Subscriptions bought through Apple or Google are cancelled and refunded by Apple or Google.

Why do I have to accept terms before I start?

The terms explain what Battery Coach is and isn't: it gives estimates, not financial or electrical advice; it only reads your data and never controls your battery; and weather alerts are forecasts, not official warnings. They also set out your rights, which include everything the Australian Consumer Law gives you.

We ask again only when the terms change in a way that matters, and we email you before that happens. You can read them any time from the link on the website home page or the sign-in page.

Will you change my battery's settings?

No. Battery Coach only reads your data. It can't change how your battery charges, discharges or reserves power.

Which batteries can I connect?

FoxESS connects directly today. Sungrow, GoodWe and Tesla connections are built and are being switched on.

For any brand, you can upload your battery's daily figures as a CSV from its app (Battery tab → Enter your battery's figures). Bills and meter data also give good savings figures and full plan comparisons.

How do you work out my yearly saving?

With battery data: each day, the energy your battery supplies is worth your evening price, minus the feed-in credit you gave up by storing solar instead of exporting it. We average that and scale it to a year.

Without battery data, we compare bills from before and after your battery, matched by time of year. With only one bill, we give a range estimate and list the assumptions.

How do I switch to the plan you recommend?

Tap Call on the recommended plan (Plan check, Retailers or your Overview) and ask the retailer for that plan by name. Have a recent bill handy: they'll need your address and NMI.

Each number shows where it came from. A few were checked on the retailer's own website; the rest come from a retailer directory, so check them on the retailer's website if the call doesn't connect. Battery Coach doesn't switch plans for you and isn't paid by retailers.

Why is my saving lower than my installer quoted?

Common reasons: the backup reserve is set high, the battery is bigger than your evening use, there's little spare solar in winter, your plan doesn't reward the battery, or a VPP is using stored energy. Check the alerts on your Overview, then try the Plans tab and talk to your installer about settings.

How do I get my meter data?

Open your home's Usage tab. It shows where to get the data for your distributor, with a link, the steps, and how long it takes. Some distributors let you download it straight away; others email it within about 10 business days.

I have less than 12 months of meter data

Upload what you have (at least 4 weeks). For comparisons we fill in the rest of the year: each missing day uses your own half-hourly pattern from the most similar month you have, scaled by how use and solar export typically change through the year in your state.

The Usage tab shows how many days are estimated, and you can download the full year as a NEM12 file (estimated days are marked "E"). Upload newer data whenever you can: measured days always replace estimates.

What does "With smart timing" mean on the retailer comparison?

If you've added appliances (EV charger, washer, dryer and so on), we work out what each retailer would cost if you ran them at the best times on that retailer's plan, using spare solar first. The saving compares that with your current plan at your usual times, so you can see the switch and the habit change together.

How do you compare plans and retailers?

We take every published plan in your area from the government's energy plan data, and price each one against every half hour of your meter data, including supply charges, GST and solar credits.

Conditional discounts, sign-up credits, fees and demand charges aren't included yet, so check the plan's Energy Fact Sheet before switching.

What do the battery alerts mean?

"Hasn't discharged": your battery barely supplied your home for 3 days. "Isn't charging from solar": your panels made power but the battery didn't fill. "No new data": we haven't heard from your battery for more than 3 days, often a Wi-Fi problem. "Doing less than usual": a week well below your normal level.

Check your battery maker's app first, then contact your installer. You can dismiss an alert; it clears itself when things return to normal.

How do you choose the best time to run an appliance?

For each half hour we work out what the run would cost: energy from spare solar costs the feed-in you'd otherwise earn, and the rest costs your plan's rate at that time. We pick the cheapest start within the hours you allow and compare it with your usual time.

Spare solar comes from your meter data if you've uploaded it, otherwise from your bills' feed-in, otherwise from your solar system's size. Big users like an EV get first claim on it.

How does the 7-day forecast work?

We learn your home's own profile: how much your panels really make for a given amount of sun, your typical weekday and weekend use, and how much extra you use on cold and hot days. With battery data this comes from your daily readings matched to the weather on those days; otherwise from your bills and system size.

We then take the weather forecast for your postcode (sun on panels facing your roof's direction, and temperature) and work out, hour by hour, your solar, use, battery charge and what you'll buy and sell. It updates every 3 hours, and appliance times use it to wait for a sunny day.

What's in Reports?

Each month (and each day within a month): your grid use and cost with your battery, what they would have been without it, and the saving. Costs use your current plan's rates, supply charge, GST and feed-in credit.

"Without battery" adds back the energy your battery supplied and the solar it stored. Where there isn't a full year of meter data, or no battery figures, those days are estimated from your own pattern and the seasons, and marked "est.".

How far ahead does the forecast go?

Weather forecasts reach about 16 days, so the first 16 days use the forecast. Days 17 to 30 use typical weather for this time of year, based on the last three weeks, and are labelled "Typical". Switch between 7 and 30 days at the top of the Forecast tab.

How accurate is the forecast?

The Forecast tab has a card called "How accurate the forecast has been". Each evening we save the forecast for the next day, and once that day has passed we compare it with what your battery actually recorded: solar, use and the battery's highest charge.

The card shows the typical error for each, the last 7 days side by side, and how the weather forecast did against simply repeating last week. If the solar forecast has been consistently high or low for at least 5 days, later forecasts are adjusted to match.

The weather comes from three forecast models (European, American and German), weighted by how well each one has matched your own panels. Clear, hazy and overcast days are corrected separately, from how far off the forecast has been on each kind of day at your home, and the battery's charge follows how your battery has really behaved: the lowest and highest levels it keeps, and any overnight charging from the grid.

Why did a notification disappear?

Notifications go once they're no longer true, read or not: an "Export now" tip at the end of its hour, a storm warning once the storm has passed or is no longer forecast, an appliance reminder when its time window ends, and a plan reminder when the season starts or if switching is no longer worth it.

When is the best time to export to the grid?

On a wholesale plan (Amber, Localvolts, Flow Power), what you earn for exports changes every half hour. The Forecast tab shows "Wholesale prices, next 6 hours" from the market operator's (AEMO's) forecast, with the best half-hours marked.

Coach then says either "Export now" (with how much your battery can spare after what your home needs until the sun is back) or "Hold your battery" when a higher price is forecast later.

If AEMO's forecast isn't available, we use the usual price for each half-hour over the last 14 days and say it's an estimate. On a fixed feed-in rate, the time you export doesn't change what you earn.

How do I add an appliance from its energy label?

Appliances tab → Add (or Edit) → "Take or choose a photo". Photograph the star-rating label, the model plate, or a screenshot of the shop's product page. You can also just type the model number.

We read the model, look it up in the government's Energy Rating register, and fill in the stars, the kWh a year and what each run uses. The register's figures win over the label when both are there.

Every figure stays editable before you save; a figure you change is kept as your own. The photo is only read, never stored.

Which plan is cheapest in each season?

Forecast tab → "12 months". The outlook covers a full year: the weather forecast for 16 days, the seasonal forecast for about 7 months, then typical weather. It's added up for summer, autumn, winter and spring.

"The cheapest plan for each season" prices every plan for your address on each season's forecast use and exports, with your battery working, supply and feed-in included. It shows the cheapest plan for the whole year, and what switching each season would save on top.

If a different plan would save at least $25 and 8% in a coming season, we remind you three weeks before it starts, in the app and by email, once per season. You can turn the reminder off on the same page.

What does "Saved since you joined Battery Coach" include?

What your battery has saved since you added your home (or since it was installed, if that was later), from its own daily figures, plus what a plan switch saved if you changed plan after joining: each bill on the new plan compared with the same usage on your old plan's rates.

Days without battery figures use the usual saving for that time of year, and the card says how many. Tips you followed aren't counted, because we can't measure them; they're in "With Battery Coach's recommendations" as estimates.

How do I check my Amber bill is right?

Bills → "Check my Amber bill". Choose the bill, then give us Amber's half-hours (your Amber API token, from Settings → Developers in the Amber app, or Amber's usage file) and your smart meter file (NEM12) for the same dates, unless it's already on your Usage tab.

We compare every half-hour: the kWh Amber billed against your meter, each price against AEMO's wholesale price for that half-hour (plus your network's charges and losses), and each charge against kWh × price. Then we add the bill up again: usage, less solar credits, plus supply charge and membership.

If something's off by $2 or more, you get the list of half-hours and a message you can send to Amber. Your token is used once and not kept, and nothing you add is stored.

Can I get alerts on my phone's lock screen?

Yes, in the Battery Coach app for Android or iPhone: Settings → Phone notifications → "Turn on notifications on this phone", then choose the kinds: severe weather, Coach tips, plan reminders and appliance reminders.

They only say what kind of alert it is (for example "Severe weather forecast near you"), never amounts, plans or your address; open the app for the details. Nothing but severe weather is sent between 9 pm and 7 am.

Signing out of the app stops them on that phone. You can also turn them off in your phone's settings. On the website, alerts show in the bell at the top.

Why do you ask me to declare I'm 18 or over?

Battery Coach is only for adults: it deals with energy contracts, bills and spending decisions. Everyone, including each household member, declares they're 18 or over the first time they sign in, and the account holder confirms it for each person they add.

We record the declaration and when you made it. We don't ask for your date of birth or any ID.

Why was I asked to accept the terms again?

When the terms of use or privacy policy change, everyone is asked to accept the new version once. The 14 November 2026 version adds household members (up to four), the age declaration and phone notifications.

Which smart plugs and devices work?

Shelly plugs and meters link directly with the key from the Shelly app. Almost anything else works through Home Assistant: EV chargers (Tesla Wall Connector, Zappi, Wallbox and others), Tuya and Arlec Grid Connect plugs, TP-Link, and Bosch, Siemens, LG and Samsung appliances.

A website can't scan your home Wi-Fi, so we find devices through those accounts. Press "Find devices" any time to pick up new ones.

Which appliances can I add, and why pick a brand?

EV chargers, washing machines, dryers, fridges and freezers, dishwashers, ovens, electric hot water, pool pumps and anything else. Washing machines, dryers and fridges have a brand list, ranked by Canstar Blue's customer ratings, with "Other brand" to type any brand. The brand is for your records; the energy figures come from what you enter (or typical values).

For an EV, choose your charger: a power point (2.4 or 3.6 kW), a wall charger (7 kW) or a three-phase fast charger (11 or 22 kW). The charging time is worked out from that. A fridge runs all day, so it isn't planned; we use it for blackout backup and the VPP check.

I charge an EV at home. What's the risk of joining a VPP?

VPP events usually run on hot afternoons and evenings (about 4pm to 9pm) and use your battery down to the provider's minimum reserve. If the car is charging then, that charge comes from the grid at the evening price. A fast charger can also empty a home battery in a few hours if the battery is allowed to supply it.

Add your EV and charger on the Appliances tab. The VPP and Appliances tabs then show your EV risk: how often events could clash with charging and roughly what it costs, how quickly the charger could drain the battery, whether your supply needs checking for a fast charger, and what's left for the fridge in a blackout. Charging from midday solar avoids most of it.

What is "Your recommendations" on the Overview?

It adds up what each of our suggestions could save you each year, on top of what your battery already saves: switching to the cheapest plan, joining the best VPP for your battery, running appliances at the suggested times, and changing your battery settings. Tap one to see the details.

The total is the most you could gain: the suggestions can overlap, because appliance times and battery settings are worked out on your current plan. If you charge an EV, the VPP suggestion points you to the EV risk first.

Will you switch my appliances or battery on or off?

No. Battery Coach only reads data. It never switches a smart plug, charger, appliance, battery or inverter on or off, and it never changes their settings.

We remind you when a good time is coming up. Start the appliance yourself, or use its own timer, schedule or delay-start. For an EV, most chargers and cars let you set a charging schedule in their own app.

My sign-in email didn't arrive

Check your spam or junk folder, and wait a minute. If you've asked for several emails, wait a while before trying again.

The sign-in link says it has expired

Type the 6-digit code from the same email on the sign-in page instead: it works in any browser and in the phone app.

Some email services (Outlook and Hotmail especially) check every link in an email, which can use it up. That's why the link now opens a page with a Sign in here button.

Someone else already holds my address

Each street address can have one account holder. If you see "This address already has an account holder", ask that person (their email is partly shown) to add you as a household member in Settings → Household. Then sign in with the email they added.

If you think it's wrong (for example a previous owner of the house), use the question form below and we'll sort it out.

How do I add my partner or another person?

Settings → Household. Enter their email and confirm they're 18 or over: we send them a link, and when they sign in with that email (and make their own 18+ declaration) they see your home. They can see and use everything; only you, the account holder, can change the home's details, battery connection and emails. You can add up to four household members and remove any of them at any time.

What is the battery health report?

Reports → Battery health shows your battery's usable capacity over time against what its warranty promises, the energy through it, cycles, efficiency, temperatures, faults and firmware, by day, month or year.

Download it as a CSV or save it as a PDF for a warranty claim. Add your warranty terms and serial number in Settings → Battery warranty.

Why does my report show the compliance certificate in red?

Your electrician should give you an electrical compliance certificate for the battery installation. It's often needed for warranty and insurance claims. Tick the box and add the certificate's date (Overview or Settings), and it turns green. Not got it yet? Set the date you expect it by, and ask your installer.

What are the recommended battery settings?

The Battery tab shows the work mode, backup reserve and charge times that suit your current plan, including whether to top up from the grid in a cheap or free period, by month and for the next 7 days. We never change your battery: you or your installer set these in its app.

Which VPPs can I join?

The VPP tab lists current VPP offers for your state, network area and battery brand, with what each pays and what you give up. Some providers don't publish their payments: those say "ask the provider". Offers change often, so check the provider's terms before signing up.

How do severe weather alerts work?

We check the weather for your home several times a day. If hail, a severe storm, damaging winds, heavy rain, extreme heat or heavy snow is forecast in the next 48 hours, you'll see it at the top of every page and get an email with the risk and what to do (like raising your battery's backup reserve before a storm, if you have one). The alert in the app is free for every home; the email is part of Coach. These come from the forecast, not official warnings: see the Bureau of Meteorology for those.

Why do you mention hail in my area?

If severe hail has been reported within 25 km of your home in the last 50 years (from the Bureau of Meteorology's storm archive), Coach suggests checking your insurance covers your solar and battery, keeping your paperwork together, and checking your solar output after a storm.

Can I install Battery Coach as an app?

Yes. On Android or a computer, tap Install app on the Overview (Chrome or Edge). On iPhone, open it in Safari, tap Share, then Add to Home Screen.

Is my data safe?

Your data is stored in Sydney, Australia. Your battery's access key is encrypted. Other users can't see your homes, bills or meter data.

If you joined through an installer, they see only totals across their customers (such as how many use the app and average savings), never your bills, meter data or address.

How do I turn on two-step verification?

Open Security (top of your homes list, or Settings → Account security). Choose text-message codes to your mobile, or an authenticator app (Google Authenticator, Microsoft Authenticator, 1Password and similar). Adding both means you're not locked out if you lose one.

Once it's on, you enter a code each time you sign in, and again before changing settings, battery or device connections (then not again for 15 minutes). We email you whenever two-step verification is added or removed.

I lost my phone and can't get a code

Use your other way to verify if you added one. Otherwise contact us from your account email: we'll check it's you before resetting two-step verification. If you think someone else has access, open Security and choose Sign out everywhere.

How do I delete my data?

In Settings you can disconnect your battery, delete meter data, or delete a home with all its bills and data. To delete your whole account, open Settings → Delete my account (it asks for your two-factor code and for you to type DELETE). If you subscribed in the App Store or Google Play, cancel that subscription there first.

Is this financial advice?

No. All figures are estimates from your data and stated assumptions, to help you decide. Check details with the retailer or VPP provider before you switch.

For installers and battery retailers

What does it cost an installer?

Pilots are arranged individually. Ask us using the form below and we'll explain pricing for your customer numbers.

What can I see about my customers?

Totals only: how many customers, how many have connected their battery or added a bill, their average estimated saving, and how many have a battery alert. You never see individual bills, meter data or addresses.

Quote requests from your calculator link are different: those people chose to share their name, contact details and results with you.

Can I change my branding?

Yes. On your dashboard, change your business name, brand colour, logo link and support email. Customers see the changes straight away.

Which battery brands do you support?

FoxESS now, Sungrow soon. Customers with other brands can still use bills and meter data. Tell us which brands you install most and we'll prioritise them.

More detail in our guides.

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