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We will be building a 100Ah LiFePO4 battery using cell modules we purchased from BatteryHookup.com.
Parts
| Part | Qty | Picture | URL |
|---|---|---|---|
| 3.2V 100ah MODULES | 4 |
| https://web.archive.org/web/20210516124542/https://batteryhookup.com/products/new-battery-hookup-lifep04-32650-3-2v-5000mah-cells-1 |
| 100A Smart LiFePO4 4S BMS | 1 |
| https://batteryhookup.com/products/12v-lifepo4-smart-bms-w-low-temp-cutoff |
| 50-Cal Black Ammo Box with Tray | 1 |
| https://www.princessauto.com/en/50-cal-black-ammo-box-with-tray/product/PA0008985962?skuId=8985962 |
| Carkio 8mm (5/16") M8 Stud Premium Remote Battery Power Junction Post Connector Terminal Kit 2pcs | 1 |
| https://www.amazon.ca/gp/product/B08J7TGPK5/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&th=1 |
5/16 bolt and lock nut | 7 |
| |
| 10 AWG Wire (red and black) |
| Princess Auto | |
| Strap | 1 |
| Princess Auto |
Modules
These modules were built specifically to handle up to 100a (1c) charge and discharge continuous. Standard lithium ion capacity tests are done at 0.2c which would be 20a continuous. The cells can handle up to 3c but the nickel and wiring was sized to handle 1c loads which is realistically where you want to be.
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For best reception, mount the module high, ideally away from metal. Do not mount it inside of a metal enclosure. The Bluetooth module may be left connected to the BMS for long periods of time. It will go into a deep sleep mode when not in use.
Software (Requires Bluetooth Module)
XiaoXang BMS
https://apps.apple.com/us/app/xiaoxiang-bms/id1375405426
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