Can a two-battery LiFePO4 setup deliver useful capacity without adding excessive weight? We’ll examine Redodo’s 12.8V 100Ah battery pair, which provides 2,560Wh combined and supports compatible 12V or 24V configurations. Each battery weighs about 22 pounds and includes a 100A BMS, IP65 protection, and cells rated for more than 4,000 cycles. We’ll also weigh its practical limits, including charging requirements and applications it isn’t designed for.
Key Takeaways
- The two batteries provide 2,560Wh total and can be wired for 12V, 200Ah parallel or 24V, 100Ah series configurations.
- Each battery supports up to 100A continuous charge and discharge, with a built-in 100A BMS and multiple safety protections.
- EV-grade LiFePO4 cells, IP65 construction, 4,000-plus rated cycles, a five-year warranty, and a stated 10-year lifespan support long-term use.
- At about 22 pounds each, they suit compatible RV, marine, solar, and backup systems, but aren’t designed for golf carts or engine starting.
- Check inverter, charger, voltage, cabling, and wiring compatibility; confirm low-temperature charging limits before use in freezing conditions.
12.8V LiFePO4 Battery Pair
The Redodo pair includes two 12.8V, 100Ah LiFePO4 batteries, each storing 1,280Wh for 2,560Wh combined. You can connect them in parallel to create a 12V, 200Ah system, or in series for a 24V, 100Ah configuration. This flexibility lets us match the pair to different system voltage and capacity requirements.
Before installation, check battery compatibility with your equipment, charger, and inverter, including their voltage and current limits. Use suitable cables and follow the manufacturer’s wiring guidance when configuring parallel wiring or a series connection. The design also supports expansion up to 4S4P, allowing larger systems to reach 48V or 400Ah.
Detailed features
Beyond its 2,560Wh combined capacity, each Redodo battery delivers up to 1,280W, with a 100A continuous charge and discharge limit. We can connect the pair in parallel for 12V, 200Ah or in series for 24V, 100Ah; expansion supports up to 4S4P.
Each unit accepts charging at up to 0.5C, and a 20A charger can recharge it in about five hours. The charger isn’t included.
EV-grade LiFePO4 cells and a 100A BMS provide protection from overcharge, over-discharge, overcurrent, short circuits, and high temperatures. IP65 construction, UL certification, and 4,000-plus deep cycles define its cycle durability.
Pros and Cons
We’ll assess the two-battery pack’s advantages, including its 2,560Wh capacity, configurable voltage, and built-in protection. We’ll also weigh its limits, such as the separately sold charger and restrictions on engine-starting and golf-cart use.
This comparison will help you judge whether the system fits your application.
Pros
With two batteries, this Redodo pack provides 2,560Wh of LiFePO4 storage and supports flexible 12V or 24V configurations. We can expand compatible systems further, while each unit delivers up to 1,280W.
| Advantage | Practical value |
|---|---|
| Lightweight construction | Each weighs about 22 lb |
| Marine versatility | IP65 rating suits wet environments |
| Integrated BMS | Guards against electrical faults |
| Long cycle life | Rated for 4,000+ cycles |
For us, the 100A continuous rating supports substantial loads, and the included terminal bolts simplify installation. UL-certified EV-grade cells add assurance. The five-year warranty and stated 10-year lifespan support long-term use in boats, RVs, solar setups, and backup systems.
Cons
Despite its capacity and flexibility, this two-battery pack has some practical limits. We’ll need to buy a charger separately, and a 20A charger takes about five hours to recharge the pair.
Cold weather charging also requires attention: the specifications don’t state a low-temperature charging cutoff, so we should confirm safe operating limits before use in freezing conditions. Each battery weighs about 22 pounds, which may complicate installation in tight spaces.
Terminal accessibility can also affect wiring, especially when batteries sit side by side or inside an enclosure. Finally, these batteries aren’t designed for golf carts or engine starting, narrowing their suitability for some applications.
Concluding thoughts
For 12V or 24V systems that need dependable deep-cycle power, the Redodo two-pack offers 2,560Wh of LiFePO4 capacity, expandable configurations, and a built-in 100A BMS in each battery. We can connect them in parallel or series, then expand the bank up to 4S4P as requirements grow.
Their 4,000-plus-cycle rating, IP65 protection, UL certification, and five-year warranty support confidence, though real world reliability depends on installation and operating conditions. For marine, RV, solar, or backup use, these batteries offer long term value when their limits fit your needs. They’re not designed for golf carts or engine starting, and chargers aren’t included.
Frequently Asked Questions
Can the Redodo Batteries Be Connected to Other Battery Brands?
Yes, we can connect Redodo batteries with other brands, but Brand compatibility depends on matching chemistry, voltage, capacity, and charge settings. For mixed systems, we should confirm manufacturer guidance and avoid combining batteries with unequal ages or conditions.
Do Both Batteries Need to Be the Same Age and Charge Level?
Yes, we recommend matching battery age and balancing charge levels before connecting them. Use identical chemistry, voltage, and capacity, and fully charge each battery separately first; this helps you reduce imbalances and supports reliable operation in parallel or series.
Can These Batteries Be Charged in Freezing Temperatures?
No. We shouldn’t charge these LiFePO4 batteries below freezing unless their manual confirms low-temperature charging support. Their listed BMS protections don’t specify freezing temperature protection, so keep them above 32°F (0°C) while charging.
Are Compatible Chargers Included With the Two-Pack?
No, the two-pack doesn’t include a charger; we receive two batteries, insulating caps, and terminal bolts. For charger compatibility, use a suitable LiFePO4 charger; charging accessories are sold separately, including the recommended 20A charger.
Will the Batteries Arrive Together in One Shipment?
We can’t guarantee a single shipment: the batteries may ship separately and arrive at different times. Check your order’s Shipping package details and tracking updates for delivery timing, and contact the seller if either battery doesn’t arrive.
Conclusion
We see the Redodo 2-pack as a practical foundation for compatible 12V or 24V RV, marine, solar, and backup systems. Its 2,560Wh combined capacity, 100A BMS, IP65 protection, and cells rated for over 4,000 cycles make a compelling specification, while the roughly 22-pound-per-battery weight eases handling. Still, performance depends on correct wiring and compatible charging equipment. Confirm cold-weather charging limits, and remember these batteries aren’t for golf carts or engine starting. The key detail is that chargers are sold separately.
