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Eco Series Group 24 lithium upgrade
The Epoch 12V 100Ah Eco Series is a value-focused Group 24 lithium battery and 12V 100Ah LiFePO4 battery built for RV, marine, solar, trolling motor, and backup power upgrades.
Replace heavy, high-maintenance lead-acid batteries with a 21-lb lithium battery that delivers 1.28kWh of dependable deep-cycle energy, smart BMS protection, IP54 splash-resistant durability, 4,500+ cycle life, and a 6-year manufacturer warranty.
A practical 12V lithium upgrade for RV, marine, and off-grid owners who want less weight, less maintenance, and better usable energy.
This Group 24 drop-in replacement measures 10.25 in L × 6.75 in W × 9.00 in H, making it easy to fit standard Group 24 trays and battery boxes. Drop it in, wire it up, and you are ready to upgrade.
This 21-lb lithium battery is far easier to lift and install than a typical 60+ lb lead-acid battery. Reducing battery weight can improve trailer tongue weight, boat balance, and general serviceability.
The built-in smart BMS lithium battery system includes 20+ safety features and low-temp cutoff lithium charge protection that blocks charging below freezing conditions to help prevent cell damage.
The IP54 enclosure is dust-protected and splash-resistant for damp battery compartments, RV battery boxes, and everyday outdoor use. It is not designed for submersion or pressure washing.
Affordable 12V solar battery, Group 24 RV battery upgrade, lightweight marine house battery, and 12V trolling motor lithium battery applications.
Eco Series value with real deep-cycle output and scalable lithium storage.
DIYers can build 24V, 36V, or 48V-class systems with up to 4 batteries in series, or increase 12V amp-hour capacity with up to 16 batteries in parallel for up to 20.48kWh.
The 100A continuous discharge rating supports everyday 12V loads and roughly 1,000W to 1,200W inverter-class systems when wiring, fusing, and inverter efficiency are properly accounted for. A 300A 5-second peak helps handle short surge events.
Eco means accessible, not disposable. LiFePO4 chemistry delivers long cycle life, flat voltage output, fast charging capability, and maintenance-free operation compared with traditional lead-acid batteries.
This Eco Series model is designed for deep-cycle storage and auxiliary power. It is not a cranking battery. For engine starting, use a cranking-rated lithium battery or confirm compatibility directly with Epoch before installation.
Full technical data for the Epoch 12V 100Ah Eco Series LiFePO4 battery.
| General | |
|---|---|
| Brand | Epoch Batteries |
| Model / SKU | 12100-ECO |
| Series | Eco Series |
| Battery type | Deep-cycle LiFePO4 battery |
| Battery group size | Group 24 |
| Chemistry | LiFePO4 / lithium iron phosphate |
| Cell type | Prismatic LiFePO4 |
| Cell configuration | 4S1P |
| Bluetooth | No |
| Self-heating | No |
| Low-temperature charge protection | Yes |
| Cycle life | 4,500+ cycles |
| Warranty | 6-year manufacturer warranty |
| Voltage and capacity | |
| Nominal voltage | 12.8V |
| Nominal capacity | 100Ah @ 0.2C |
| Stored energy | 1.28kWh |
| Operating voltage range | 10.0V – 14.6V |
| Maximum charge voltage | 14.6V |
| Current ratings | |
| Max continuous discharge | 100A |
| Maximum discharge current | 200A |
| Peak discharge | 300A @ 5 seconds |
| Max continuous charge current | 100A |
| Recommended charge current | 50A |
| Series and parallel configuration | |
| Series connections | Max 4 batteries in series, up to 48V-class systems |
| Parallel connections | Max 16 batteries in parallel |
| Maximum 12V parallel energy | 20.48kWh with 16 batteries in parallel |
| Maximum configuration | Max 4S / 16P with matched batteries and proper system protection |
| Temperature | |
| Charge temperature range | 0°C to 55°C / 32°F to 131°F |
| Discharge temperature range | -20°C to 60°C / -4°F to 140°F |
| Recommended storage temperature | 0°C to 35°C / 32°F to 95°F recommended |
| Low-temperature charge cutoff | Charge protection enabled |
| Dimensions and weight | |
| Length | 10.25 in / approx. 26.04 cm |
| Width | 6.75 in / approx. 17.15 cm |
| Height | 9.00 in / approx. 22.86 cm |
| Overall dimensions | 10.25 in L × 6.75 in W × 9.00 in H |
| Weight | 21 lb / approx. 9.5 kg |
| Mechanical | |
| Terminal | M8 bolt / verify supplied torque |
| Case material | ABS and PC blend, UL94-V0 flame rating |
| IP rating | IP54 — dust-protected and splash-resistant |
| Recommended charging settings | |
| Bulk / absorption voltage | 14.2V – 14.4V |
| Absorption end condition | Stop when charge current is ≤ C/20 or 15 minutes max |
| Float voltage | Disabled preferred, or 13.3V – 13.6V |
| Re-bulk voltage | 13.2V |
| Equalization | Disabled |
| Temperature compensation | 0mV/°C / none |
| BMS high-voltage cutoff | 14.6V |
| SoC recalibration voltage | 14.6V |
| BMS protection and compliance | |
| Smart BMS | Built in with 20+ safety features |
| Protection functions | Overcharge, over-discharge, over-current, short-circuit, and high / low temperature disconnects |
| Certifications / compliance | UL 1642 cells, UL 9540A cells, IEC 62619:2022, CE, RoHS |
| Shipping classification | UN 38.3, Class 9 lithium battery shipping classification |
Use LiFePO4-compatible charging equipment and verify fitment before installation.
Program chargers, converter chargers, inverter chargers, MPPT solar controllers, and DC-to-DC chargers within Epoch’s recommended lithium charging parameters. Disable equalization and temperature compensation. For series or parallel banks, use matched batteries, balanced wiring, properly sized cables, fuses or breakers, and system-level disconnects.
Common questions about Group 24 fitment, charging, Bluetooth, cold-weather protection, and system building.
Yes. The Epoch 12V 100Ah Eco Series is a true Group 24 drop-in replacement. Measuring 10.25 in L × 6.75 in W × 9.00 in H, it is designed to fit standard Group 24 battery trays found in many RVs, campers, boats, and auxiliary power systems without requiring custom space modifications. Always verify cable clearance, terminal access, and tray dimensions before installation.
No. The Eco Series does not include internal heating pads, but it does include low-temperature charge protection. The smart BMS blocks charging below the published charge temperature range to help protect the lithium cells from damage. The battery can still discharge power in temperatures as low as -4°F / -20°C.
Yes. The 12100-ECO supports up to 4 batteries in series for 24V, 36V, or 48V-class systems and up to 16 batteries in parallel for expanded capacity. Use matched batteries of the same model, age, capacity, and state of charge, and use compatible charging equipment, fusing, disconnects, and properly sized cabling.
No. This is a dedicated deep-cycle battery. It is engineered for prolonged, steady power in applications such as RV house systems, trolling motors, solar storage, marine electronics, and auxiliary 12V loads. It is not designed to provide the instantaneous cold-cranking amps required to start gas or diesel engines.
Use a charger, converter, inverter charger, solar controller, or DC-to-DC charger with a dedicated LiFePO4 charge profile. Epoch lists a recommended bulk/absorption voltage of 14.2V–14.4V, 14.6V BMS high-voltage cutoff, equalization disabled, and temperature compensation disabled. Avoid lead-acid chargers with desulfation or equalization modes.
No. The Eco Series does not include Bluetooth or app connectivity. By omitting premium features such as Bluetooth and internal heating, the Eco Series delivers safe LiFePO4 chemistry, smart BMS protection, and 4,500+ cycle life at a more accessible price point. For Bluetooth monitoring, compare Epoch Essential, Pro, or Elite Series options.
The Epoch 12V 100Ah Eco Series is rated for 4,500+ cycles. Depending on usage, charging habits, depth of discharge, temperature, and storage conditions, this LiFePO4 battery can significantly outlast traditional lead-acid batteries while eliminating watering, acid maintenance, and routine corrosion cleanup.
Experience worry-free adventures with our robust IP54 protection. Your battery is effectively shielded against dust and water splashes, giving you the confidence to use it in light rain or dusty conditions. While not fully waterproof, IP54 provides reliable protection for most everyday outdoor scenarios.
