Description
Description
The ABYSS® 12V 206Ah Dual-Purpose Group 31 Lithium Marine Battery is a compact, high-capacity power solution engineered for modern marine systems that demand reliability, intelligence, and performance. Designed to deliver both engine starting power and deep-cycle house energy, this battery is ideal for vessels running advanced electronics, trolling motors, pumps, and auxiliary onboard systems.
Equipped with NMEA 2000® integration and Bluetooth® connectivity, this battery provides real-time communication across your vessel’s network and direct monitoring from your mobile device or MFD. Access critical data including voltage, state of charge, current flow, and system health—ensuring full visibility and control at all times.
Built with premium LiFePO4 cells and an advanced high-output Battery Management System (BMS), this battery maintains consistent voltage under load, improving performance for sensitive electronics and mission-critical systems.
An integrated internal heating system allows for safe charging in cold-weather environments, extending usability and protecting battery longevity in extreme conditions.
Delivering significantly more usable energy, faster charging, and up to 70% weight savings over AGM, the ABYSS® 206Ah Group 31 is the ultimate upgrade for boaters looking to simplify their system without sacrificing power.
Specifications
Specifications
Identification
| MPN | AB-12V206-BT |
|---|
12V 206Ah Battery Datasheet
| Nominal Voltage | 12.8V |
|---|---|
| Nominal Capacity | 206Ah |
| Parallel Connection | Maximum 4 units |
| Serial Connection | Maximum 4 units |
| Bluetooth Management System (BMS) | 4S 200A (Available on Android/iOS) |
| Charge Voltage | 14.4±0.2V |
| Standard Charge Current | 40A |
| Fast Charge Current | 100A |
| Max. Continuous Discharge Current | 200A |
| Peak Discharge Current | 1200A (CCA) 300ms |
| Discharge Cut-off Voltage | 12V (Emergency Start Power Reserve) |
| Cycle Life | 4000 cycles @ 95% Depth of Discharge (DOD) and 6000 cycles @ 80% DOD |
| Self Discharge Rate | Less than 3% per month |
| Operating Charge Temperature Range | -20°C to 55°C (-4°F to 131°F) |
| Operating Discharge Temperature Range | -20°C to 60°C (-4°F to 140°F) |
| Storage Temperature Range | 0°C to 45°C (32°F to 113°F) |
Physical Specifications
| Dimensions | 13.58" x 7.48" x 9.65" in (345×190×245mm) |
|---|---|
| Approximate Weight | 44.00 lbs (19.96 Kg) |
| Terminal Type | M8 |
| Case Color/Material | Black Plastic case (ABS) |
| IP Rating | IP67 |
| Cell Type | Prismatic LiFePO4 cell (EVE 206Ah) UL Cell |
| Cell Holder | Yes |
Additional Information
| Features | Bluetooth connectivity for monitoring via Android and iOS devices; NMEA 2000 connection (compatible with Garmin, Raymarine and SIMRAD); Internal heating for cold weather performance; Emergency Start Power Reserve |
|---|---|
| Certifications | UL 1642, IEC62133, IEC62619, CE, UN38.3, ROHS |
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* ALL WARRANTY IS THROUGH MANUFACTURE *



