Download
IonVolt Bridge card
Ready to write to a microSD card for a Raspberry Pi. You download it from the IonVolt app and pair it from there too.
IonVolt Bridge 2.1
Runs IonVolt on your own home network: the Pi talks to your house battery directly and keeps working without the internet.
The card is for IonVolt customers, so it's in the app: sign in, then Connect your house battery › On your own network › Ready-made card › Download the Pi Card (or Settings › Integrations › House battery › Local Hub). The link lasts 15 minutes and is linked to your account; the app makes a fresh one whenever you need it. In the app's demo, make a free account first.
SHA-256 e0095c044b6b230e30dd052b14d70ab42ecb5c57a4307a49da0020fe24c3cb04
Write it
- Install Raspberry Pi Imager on your computer, and download the card from the IonVolt app (Send These Steps to Your Computer sends the link there).
- In Imager: your Pi model, then Choose OS › Use custom › the file you downloaded, then your microSD card (8 GB or more). If the Pi won't have a network cable, add your Wi-Fi when Imager offers to edit settings. Write.
- Put the card in the Pi, connect the network cable (or use the Wi-Fi from step 2) and power it on. The first start takes about three minutes.
- In IonVolt: Connect your house battery › On your own network › Ready-made card › Find My Bridge, then Pair This Bridge.
Works with a Raspberry Pi Zero 2 W, 3, 4 or 5. The card updates itself overnight.
Check the download
On a Mac or Linux, in the folder you downloaded to: shasum -a 256 -c ionvolt-bridge-2.1-20261026.img.xz.sha256. On Windows, in PowerShell: Get-FileHash ionvolt-bridge-2.1-20261026.img.xz, and compare it with the SHA-256 above.
Pairing, troubleshooting and the command-line install are in the set-up guide.