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Choosing a lithium battery for a solar system means looking beyond just amp-hours. Voltage must match your inverter and charge controller, while the battery’s energy capacity (watt-hours) determines how long you can run loads. Cycle life, the built-in battery management system (BMS), and low-temperature protection all affect long-term reliability. For a deeper look at lithium chemistry, see our LiFePO4 vs lead-acid comparison.
We compared six lithium batteries from ECO-WORTHY and RICH SOLAR that are designed for solar storage, off-grid cabins, and home backup. The table below covers 12V, 24V, and 48V models with capacities from 100Ah to 314Ah. Use our battery bank sizing guide to calculate how many you need.
Every specification on this page comes from the manufacturer’s own product page, checked on 29 October 2026. We have not used these products ourselves, so the picks are based on published specifications only.
If you’re building a complete system, also see our MPPT charge controller comparison and battery safety guide.
How we chose these
- Voltage Compatibility Match the battery voltage (12V, 24V, or 48V) to your inverter and charge controller.
- Energy Capacity Look at watt-hours (Wh), not just amp-hours, to understand how much energy the battery stores.
- Cycle Life and BMS A higher cycle count and a smart BMS with protections extend battery life and safety.
- Low-Temperature Protection If you charge in cold weather, built-in heating or low-temp cutoff prevents damage.
All batteries listed use LiFePO4 chemistry, which is safer and longer-lasting than lead-acid.
Comparison table
| Product | Nominal Voltage | Rated Capacity | Nominal Energy | Max Charge Current | Cycle Life | Weight |
|---|---|---|---|---|---|---|
| ECO-WORTHY 12V 100Ah | 12.8V | 100Ah | 1280Wh | 100A | Not stated | 23.37 lbs |
| ECO-WORTHY 12V 314Ah | Not stated | 314Ah | 4019Wh | Not stated | 6000+ cycles | Not stated |
| ECO-WORTHY 24V 100Ah | 25.6V | 100Ah | 2560Wh | 100A | Not stated | 44.1 lbs |
| ECO-WORTHY 51.2V 314Ah | 51.2V | 314Ah | 16kWh | Not stated | Not stated | Not stated |
| RICH SOLAR ALPHA 3 MINI 12V 314Ah | 12.8V | 314Ah | 4019Wh | 200A | 5000+ cycles | 61.7 lbs |
| RICH SOLAR ALPHA 3 PRO 12V 314Ah | 12.8V | 314Ah | 4019Wh | 200A | 8000+ cycles | 71.7 lbs |
All batteries use LiFePO4 chemistry. ‘Not stated’ means the manufacturer did not publish that specification on the product page at the time of writing.
1. ECO-WORTHY 12V 100Ah LiFePO4 Lithium Battery with SOC Display: for small solar setups and RVs
ECO-WORTHY says this 12V 100Ah battery pairs smart monitoring with extra safety features. The built-in SOC display and Bluetooth let you check battery status in real time, and the 100A BMS keeps operation steady and protected. It also includes a low-temperature safeguard so the battery can work dependably when it is cold.
- Screw size: M8 (ECO-WORTHY)
- Discharge cut-off voltage: 10V (ECO-WORTHY)
- Charge temperature range: 0-55℃ (ECO-WORTHY)
Pros: Bluetooth and SOC display; low-temperature protection; lightweight at 23.37 lbs
Cons: Cycle life not stated; max charge current limited to 100A
2. ECO-WORTHY EnergyTrek 12V 314Ah LiFePO4 Lithium Battery: for high-capacity 12V off-grid systems
According to ECO-WORTHY, the EnergyTrek 12V 314Ah battery stores 4019Wh and is rated for over 6000 cycles. It comes with Bluetooth, an LED status panel, and a 200A BMS that provides complete protection. The battery also handles both low temperatures and high heat, making it suitable for year-round off-grid use.
- Low-temperature protection included (ECO-WORTHY)
- LED status display (ECO-WORTHY)
- 6000+ cycle life (ECO-WORTHY)
Pros: High 4019Wh capacity; 6000+ cycle life; 200A BMS
Cons: Voltage and weight not stated; no built-in heater mentioned
3. ECO-WORTHY 24V 100Ah Bluetooth Lithium Battery with BMS: for 24V solar arrays and efficiency
ECO-WORTHY states that this 24V 100Ah battery offers 2560Wh of storage. The internal BMS guards against overcharging, deep discharge, excessive current, and short circuits. With Bluetooth, you can check the battery’s voltage, its current, the state of charge, and the overall health from a phone or tablet.
- Maximum charge voltage: 29.2V (ECO-WORTHY)
- Discharge cut-off voltage: 10V (ECO-WORTHY)
- Charge temperature range: 0-55℃ (ECO-WORTHY)
Pros: 24V architecture for efficiency; Bluetooth monitoring; 100A charge/discharge
Cons: Cycle life not stated; no low-temperature heating mentioned
4. ECO-WORTHY PowerMega 314 51.2V 314Ah Lithium Battery: for whole-home 48V backup
ECO-WORTHY describes the PowerMega 314 as a 51.2V 314Ah battery with 16kWh capacity for whole-home backup. It includes active balancing of the cells, a 200A smart BMS, and built-in fire suppression. You can check the system through a 7-inch touchscreen, Bluetooth, WiFi, or PC software, and it can expand up to 241kWh.
- Active cell balancing (ECO-WORTHY)
- Integrated fire suppression (ECO-WORTHY)
- 10-year warranty (ECO-WORTHY)
Pros: Very high 16kWh capacity; active balancing and fire suppression; scalable to 241kWh
Cons: Max charge current not stated; weight and cycle life not stated; requires 48V system
5. RICH SOLAR ALPHA 3 MINI 12V 314Ah LiFePO4 Battery: for compact high-capacity 12V storage
RICH SOLAR highlights the ALPHA 3 MINI’s space-saving design, which is roughly 40% more compact than typical 12V 314Ah batteries. It delivers 4019Wh, over 5000 cycles, and a smart BMS with thorough electrical and thermal safeguards. A built-in heater allows charging in cold weather, and Bluetooth lets you monitor the battery from the RICH SOLAR App.
- IP65 waterproof housing (RICH SOLAR)
- UL94 V-0 flame-retardant plastic (RICH SOLAR)
- Parallel expansion up to 4 units (RICH SOLAR)
Pros: Compact size; built-in heater; IP65 waterproof; 5000+ cycles
Cons: Heavier than some 12V 100Ah batteries (61.7 lbs); max charge current 200A
6. RICH SOLAR ALPHA 3 PRO 12V 314Ah LiFePO4 Battery: for long-cycle-life 12V solar storage
RICH SOLAR says the ALPHA 3 PRO achieves over 8000 cycles and stores 4019Wh. It uses Grade A+ LiFePO4 cells and an advanced BMS that protects against overcharging, deep discharge, and temperature extremes. An internal heater automatically warms the battery for cold-weather charging, and up to four units can be connected in parallel.
- UL1973 certified (RICH SOLAR)
- IP65 ingress protection (RICH SOLAR)
- 10-year warranty (RICH SOLAR)
Pros: 8000+ cycle life; UL1973 certified; built-in heater; IP65
Cons: Heaviest at 71.7 lbs; larger dimensions; max charge current 200A
Which one fits you
| Your situation | Look at | Why |
|---|---|---|
| You need a small 12V battery for an RV or cabin | ECO-WORTHY 12V 100Ah | Lightweight, Bluetooth, and low-temp protection at 1280Wh. |
| You want high capacity in a 12V system | RICH SOLAR ALPHA 3 PRO or ECO-WORTHY 12V 314Ah | Both offer 4019Wh; the PRO has 8000+ cycles and UL1973 certification. |
| You have a 24V inverter and want efficiency | ECO-WORTHY 24V 100Ah | 2560Wh with 24V reduces current and energy loss. |
| You need whole-home backup with 48V | ECO-WORTHY 51.2V 314Ah | 16kWh capacity, active balancing, and scalable up to 241kWh. |
Practical tips
- Match battery voltage to your inverter and charge controller; mixing voltages can damage equipment.
- Consider total watt-hours needed for your daily loads, not just amp-hours, to size the battery bank correctly.
- If you charge in freezing temperatures, choose a battery with low-temperature protection or a built-in heater.
- Check the maximum charge current to ensure your solar array can recharge the battery efficiently.
Sources
Specifications from each manufacturer’s product page, checked 29 October 2026: ECO-WORTHY 12V 100Ah LiFePO4 Lithium Battery with SOC Display, ECO-WORTHY EnergyTrek 12V 314Ah LiFePO4 Lithium Battery, ECO-WORTHY 24V 100Ah Bluetooth Lithium Battery with BMS, ECO-WORTHY PowerMega 314 51.2V 314Ah Lithium Battery, RICH SOLAR ALPHA 3 MINI 12V 314Ah LiFePO4 Battery, RICH SOLAR ALPHA 3 PRO 12V 314Ah LiFePO4 Battery. Makers can change specifications; check the product page before you buy.
