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12V 300Ah (3.84kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery 12V 300Ah (3.84kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery
SKU: 12300A-H
The Epoch 12V 300Ah (3.84kWh) Essential Series - Bluetooth & Heated 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, 300ah, 3.84kwh, 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, 300Ah, 3.84kWh, and Essential Series
- Best-use applications: solar and off-grid power and backup energy storage
- Notable features: Bluetooth monitoring support and built-in heating for cold-weather charging support
- SKU: 12300A-H
- Availability note: This item may be listed as pre-order or supplier-restock dependent. Confirm current availability before planning an install date.
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 300Ah (3.84kWh) Pro Series - LiFePO4 Cranking & Deep Cycle Lithium Battery (Dual Purpose) for another Epoch Batteries battery option.
| 12V 300Ah (3.84kWh) Essential Series - Bluetooth & Heated LiFePO4 Battery | |
| Selected variant SKU | 12300A-H |
|---|---|
| MODEL | |
| Model / SKU | 12300A-H |
| Product Type | Battery |
| ELECTRICAL | |
| Series | Essential Series |
| Battery type | Heated Bluetooth deep-cycle LiFePO4 battery |
| Chemistry | LiFePO4 / Lithium iron phosphate |
| Cell configuration | 4S1P |
| Nominal voltage | 12.8V |
| Nominal capacity | 300Ah |
| Energy stored | 3.84kWh |
| Operating voltage range | 10.0V – 14.6V |
| Maximum charge voltage | 14.6V |
| Max continuous discharge | 200A |
| Max continuous charge current | 200A |
| Recommended charge current | 50A |
| Max discharge peak current | 400A @ 3 seconds |
| Series connections | Max 4 batteries in series, up to 48V systems |
| Parallel connections | Max 4 batteries in parallel, up to 1,200Ah |
| Maximum configuration | 4S4P |
| Maximum continuous charge current | 200A |
| Bulk / absorption voltage | 14.2V – 14.4V |
| Float voltage | Disabled preferred, or 13.3V – 13.6V |
| Re-bulk voltage | 13.2V |
| BMS high voltage cutoff | 14.6V |
| SoC recalibration voltage | 14.6V |
| Battery Features | Bluetooth monitoring, Self-heating, LiFePO4 chemistry |
| CONNECTIONS | |
| Terminal type and torque | M8 bolt / 8–12 N·m |
| PHYSICAL | |
| Battery group size | Group 31 |
| Length | 13.75 in at base / 15.5 in at handles |
| Weight | 58 lbs / approx. 26.3 kg |
| Case material | ABS and PC blend, UL94-V0 flame rating |
| Enclosure protection | IP54 |
| OPERATING LIMITS | |
| Cycle life | 4,000+ cycles |
| Short-circuit protection | 800A @ 500µs |
| Charge temperature range | -20°C to 55°C / -4°F to 131°F, with heating |
| 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 |
| Certifications / compliance | UL 1642 cells, UL 9540A cells, IEC 62619:2022, CE, RoHS |
| Communications | Bluetooth; CAN bus; RS485 |
| • Bulk Voltage | 14.2V |
| • Absorption Voltage | 14.2V |
| Cell compliance UL 1642 cells, UL 9540A cells, IEC 62619 | 2022 |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.