Redodo 2 Pack 12V 100Ah Group 31 LiFePO4 Batteries
$519
Key Specs
| capacity | 100Ah each / 200Ah parallel |
| voltage | 12V each |
| chemistry | LiFePO4 |
| weight | 24.2 lbs each |
| dimensions | 13.0 x 6.8 x 8.7 in each |
| bms | 100A per battery |
| warranty | 5 years |
Pros
- ✓ Two matched batteries in a single purchase simplifies parallel or series bank building
- ✓ Matched cells from the same production batch improve bank balance
- ✓ Group 31 form factor fits standard RV and marine battery trays
- ✓ Cost per Ah is lower than buying individual batteries separately
Cons
- ✗ Requires appropriate parallel or series wiring — not plug-and-play
- ✗ Combined weight of two units requires careful handling during installation
Detailed Review
Overview
Buying batteries in matched pairs offers advantages that purchasing individual units separately cannot. When two batteries come from the same production batch, their internal resistance, capacity, and self-discharge rates are closely matched — and matched cells perform better in parallel banks than mismatched ones. Redodo’s 2-pack of 12V 100Ah Group 31 LiFePO4 batteries delivers that benefit along with a lower per-Ah price compared to buying two individual units.
The two batteries can be wired in parallel to create a 12V 200Ah bank with doubled capacity, or in series to create a 24V 100Ah bank for systems that operate at 24 volts. Both configurations benefit from the cell matching inherent in a factory-paired set. The Group 31 form factor means each unit drops directly into a standard battery tray or battery box.
Key Features
Each battery in the pair carries its own integrated 100A BMS, providing independent protection for each unit. In a parallel configuration, each battery’s BMS manages its own cell group, and the combined system supports up to 200A of continuous current draw — sufficient for large pure sine wave inverters, electric windlasses, and other high-demand marine or RV applications.
Passive cell balancing operates independently in each unit, and the 4,000+ cycle rating applies to each battery individually. Buying a matched set from Redodo also simplifies warranty service — both batteries are covered under the same five-year warranty with the same purchase documentation.
Performance and Capacity
In a 12V parallel configuration, the 200Ah combined bank delivers 2,560Wh of accessible energy. The flat LiFePO4 discharge profile is maintained across both batteries simultaneously, and the doubled current capacity means high-draw loads like 2,000W inverters can operate near their rated capacity without straining the system.
For 24V systems — common in larger RVs, commercial vessels, and off-grid solar installations with longer wire runs — the series configuration provides 24V at 100Ah (2,400Wh) with the efficiency and reduced wire sizing advantages of higher voltage operation.
Who It’s For
The Redodo 2-pack is the smart purchase for anyone who knows they need 200Ah or a 24V bank and wants to save money compared to buying two separate batteries. RV owners upgrading to a full 200Ah house bank, boat owners wiring a 24V trolling motor system, and solar storage builders who want the reliability of matched batteries will all benefit from choosing the factory pair over two individually sourced units.
