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12V 50Ah (0.64kWh) Essential Series - Bluetooth LiFePO4 Battery 12V 50Ah (0.64kWh) Essential Series - Bluetooth LiFePO4 Battery
SKU: 1250A-ES
The Epoch 12V 50Ah (0.64kWh) Essential Series - Bluetooth LiFePO4 Battery gives customers a lithium iron phosphate power option for solar and off-grid power and backup energy storage. It is a strong fit for shoppers comparing dependable LiFePO4 batteries for cleaner energy storage, lighter maintenance, and a more modern replacement path than traditional lead-acid battery setups.
Use this model when you need a 12v, 50ah, 0.64kwh, and essential series that can support mobile, marine, golf cart, backup, or off-grid electrical systems depending on the installation. The description is written for real-world buying decisions: voltage, capacity, fitment, monitoring features, and charging compatibility should all be checked against your existing equipment before purchase.
- Core configuration: 12V, 50Ah, 0.64kWh, and Essential Series
- Best-use applications: solar and off-grid power and backup energy storage
- Notable features: Bluetooth monitoring support
- SKU: 1250A-ES
For the best long-term setup, pair this battery with the correct charger, cable sizing, fusing, and voltage-compatible equipment. When comparing models, focus on usable capacity, system voltage, communication features, installation space, and how the battery will be charged day to day.
Plan a lithium battery change
If you are replacing an RV lead-acid battery, our RV lead-acid to lithium guide explains charging, wiring and compatibility checks before changing chemistries.
Compare before you choose
Compare nominal voltage, stored energy, BMS current, temperature protection and communication before sizing a bank.
See the 12V 100Ah (1.28kWh) - Eco Series LiFePO4 Battery for another Epoch Batteries battery option.
| 12V 50Ah (0.64kWh) Essential Series - Bluetooth LiFePO4 Battery | |
| Selected variant SKU | 1250A-ES |
|---|---|
| MODEL | |
| Model / SKU | 1250A-ES |
| Product Type | Battery |
| ELECTRICAL | |
| Series | Essential Series |
| Battery type | Bluetooth deep-cycle LiFePO4 battery |
| Primary applications | Kayak trolling motors, marine electronics, fish finders, small RV/van systems, portable solar, backup, and 12V auxiliary loads |
| Chemistry | LiFePO4 / Lithium iron phosphate |
| Cell configuration | 4S LiFePO4 |
| Nominal voltage | 12.8V |
| Nominal capacity | 50Ah |
| Stored energy | 0.64kWh / 640Wh |
| Operating voltage range | 10.0V – 14.6V |
| Maximum charge voltage | 14.6V |
| Max continuous discharge | 50A |
| Max continuous charge | 50A |
| Recommended charge current | 25A typical / 50% capacity |
| Peak discharge | 170A @ 3 seconds |
| Series connections | Max 4 batteries in series, up to 48V nominal systems |
| Parallel connections | Max 4 batteries in parallel |
| Maximum configuration | 4S4P using matched batteries and proper system protection |
| Maximum parallel capacity | Up to 200Ah / 2.56kWh with four matched batteries in parallel |
| Charger type | 12V LiFePO4-compatible charger, converter, inverter charger, solar controller, or DC-to-DC charger |
| Maximum continuous charge | 50A |
| Bulk / absorption voltage | 14.2V – 14.6V |
| Float voltage | 13.4V – 13.8V; float disabled preferred where supported |
| Re-bulk voltage | 13.2V if programmable |
| BMS high-voltage cutoff | 14.6V |
| SOC recalibration voltage | 14.6V |
| Battery Features | Bluetooth monitoring, LiFePO4 chemistry |
| CONNECTIONS | |
| Bluetooth monitoring | Yes — Epoch Pro app for compatible iOS and Android devices |
| Terminal type | Bolt terminals — verify supplied terminal torque and hardware before installation |
| PHYSICAL | |
| Length | 7.7 in |
| Overall dimensions | 7.7 in L × 6.5 in W × 6.9 in H |
| Weight | 14.3 lb / 6.5 kg |
| Enclosure protection | IP54 weather resistant |
| OPERATING LIMITS | |
| Cycle life | 4,000+ cycles |
| Deep-cycle load warning | Do not design continuous loads above the 50A per-battery continuous limit |
| 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 |
| Temperature compensation | 0mV/°C / none |
| Compact Bluetooth LiFePO4 Power | The Epoch 12V 50Ah Essential Series LiFePO4 Battery is a compact |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.