LiFePO4 house battery, 100Ah
Vemdia 12V 100Ah LiFePO4, Group 31 Specs and Sizing
Researched from published standards and manufacturer specifications. Updated .
Quick answer
This is a specification sheet rather than a review. Every figure below comes from the manufacturer listing, and we do not test products in person. What this page adds is context: what these numbers mean for an RV system, and what else you need to buy alongside it.
Best for: Replacing a single Group 31 lead-acid battery.
Vemdia 12V 100Ah LiFePO4, Group 31 specifications
| Specification | Value |
|---|---|
| Voltage | 12 |
| Capacity Ah | 100 |
| Energy Wh | 1280 |
| Chemistry | LiFePO4 |
| Bci Group | 31 |
| Bms Amps | 100 |
Published standard Source: Manufacturer listing. Specifications change without notice, and Amazon shows the current price. Confirm on the listing before buying.
What does this component need alongside it?
A battery is only as good as what charges it. A lithium pack needs a converter, solar controller and DC-DC charger that all carry a genuine lithium profile, plus a shunt monitor to read state of charge, correct cable sizing and a fuse at the positive terminal.
How does it compare with other lifepo4 house battery, 100ah options?
| Component | Budget | Notable spec |
|---|---|---|
| Vemdia 12V 100Ah LiFePO4, Group 31 | Under $250 | voltage: 12 |
| Super Empower 12V 100Ah LiFePO4, Group 24 | Under $250 | voltage: 12 |
| Dyness 12V 100Ah LiFePO4 with Bluetooth | Under $250 | voltage: 12 |
| HeyFuture 12V 100Ah LiFePO4 with Bluetooth | Under $250 | voltage: 12 |
Published standard Source: Manufacturer listings.
Super Empower 12V 100Ah LiFePO4, Group 24
Under $250A Group 24 case drops into most existing lead-acid battery boxes without modification, and the BMS stops charging below freezing.
Best for: A first lithium conversion in a travel trailer that already has a Group 24 tray.
Check price on Amazon
Dyness 12V 100Ah LiFePO4 with Bluetooth
Under $250Bluetooth reporting of pack voltage and state of charge means you can check the bank without adding a separate shunt monitor.
Best for: Owners who want pack data without wiring a shunt on day one.
Check price on Amazon
HeyFuture 12V 100Ah LiFePO4 with Bluetooth
Under $250One of the lower-cost Bluetooth packs with a published 100A BMS rating, which is the figure that limits inverter size.
Best for: A single-battery bank feeding a 1000W inverter.
Check price on AmazonLiFePO4 house battery, 100Ah options
Vemdia 12V 100Ah LiFePO4, Group 31
Under $250A Group 31 case with a 100A BMS, which is the common size for a purpose-built RV battery compartment.
Best for: Replacing a single Group 31 lead-acid battery.
Check price on Amazon Super Empower 12V 100Ah LiFePO4, Group 24
Under $250A Group 24 case drops into most existing lead-acid battery boxes without modification, and the BMS stops charging below freezing.
Best for: A first lithium conversion in a travel trailer that already has a Group 24 tray.
Check price on Amazon Dyness 12V 100Ah LiFePO4 with Bluetooth
Under $250Bluetooth reporting of pack voltage and state of charge means you can check the bank without adding a separate shunt monitor.
Best for: Owners who want pack data without wiring a shunt on day one.
Check price on Amazon HeyFuture 12V 100Ah LiFePO4 with Bluetooth
Under $250One of the lower-cost Bluetooth packs with a published 100A BMS rating, which is the figure that limits inverter size.
Best for: A single-battery bank feeding a 1000W inverter.
Check price on AmazonFrequently asked questions
- What is the Vemdia 12V 100Ah LiFePO4, Group 31 best for?
- Replacing a single Group 31 lead-acid battery. A Group 31 case with a 100A BMS, which is the common size for a purpose-built RV battery compartment. Confirm the current specification on the listing before buying, because manufacturers revise these products without changing the model name.
- Is the Vemdia 12V 100Ah LiFePO4, Group 31 suitable for a lithium system?
- Yes. This component either is a LiFePO4 battery or carries a genuine lithium charge profile, which is the specification that matters. A charger without a lithium profile will not bring a LiFePO4 pack to full charge.
- What size cable and fuse does it need?
- That depends on the current it carries and the length of the run, not on the component itself. Work out the current from its rating, then size the conductor for both ampacity and voltage drop with the wire gauge calculator, and fuse it at 125 percent of the continuous load rounded up to the next standard rating.
Lithium safety. A LiFePO4 bank needs a charger with a genuine lithium profile, and that means the converter, the solar controller and any DC-DC charger all have to be set correctly. A stock lead-acid converter will never bring a lithium pack to full. Charging a lithium battery below freezing damages the cells permanently, so the pack needs either a low temperature charge cutoff in its BMS or a self-heating design if you camp in the cold.
