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Enerdrive | Dometic B-TEC 12V 125Ah G2 Lithium Battery


Enerdrive | Dometic B-TEC LiFeP04 12v 125Ah G2 Lithium Battery

Available in 12v 100Ah, 125Ah, 200Ah and 300Ah capacities and 24v 100Ah & 36v 100Ah, the B-TEC lithium battery is designed and intended for use in deep cycle applications where a single battery is required that meets the amp hour capacity.

Smart Phone Monitoring System

The Enerdrive B-TEC G2 battery incorporates wireless Battery Monitoring Technology. By downloading the Android™ or Apple® app to your smartphone or tablet device, you can monitor the following information;

  • Battery Capacity
  • Battery Voltage
  • Battery Current (Amps)
  • Battery State of Charge (SOC)
  • Battery State of Health (SOH)
  • Battery Status
  • Individual Cell Voltage
  • Battery Temperature
  • Battery Cycles
  • Battery Alarms
  • Battery Event Information

Battery Management System

The battery is also equipped with an internal Battery Management System that can monitor and optimise each Prismatic cell within the battery during normal operation. It will protect the battery pack from over charge, over discharge, over temperature & short circuit. The BMS helps to ensure safe and accurate operation of the battery. Please note that a fully discharged battery (BMS is off) requires charging within 14 days to avoid cell damage.

Size & Weight Savings

Lithium v AGM Capacities;

  • 100Ah Lithium = 160Ah AGM
  • 125Ah Lithium = 200Ah AGM
  • 200Ah Lithium = 320Ah AGM
  • 300Ah Lithium = 480Ah AGM

(Based on standard depth of discharge for both Lithium (80%) and AGM (50%).

The Enerdrive B-TEC battery provides 60% more usable power than its equivalent lead acid cousin and being nearly 50% lighter and 30% smaller makes for a superior alternative.

The G2 now incorporates a “Built-In Reset Button” making re-starting a flat battery a breeze. No longer do you need to apply a voltage to the battery terminals to wake up the battery. Press the button and within seconds, the battery will come back to life ready to accept a charge source to rejuvenate the battery.

The Enerdrive B-TEC battery is perfect for camper trailers, 4WD’s (AUX battery), caravans, small water craft, low power communication sites or any other application that requires the use of a single deep cycle battery that meets the amp hour capacity.

With over a decade of researching, designing and testing lithium batteries and the associated charging systems, Enerdrive are at the forefront of lithium battery systems in Australia. Enerdrive are the only Australian company that can supply a fully integrated self-branded energy system to suit your setup.

With over 3000 complete systems in operation Australia wide, Enerdrive is regarded as the leader in the field of lithium batteries and energy systems for Mobile, Marine and Remote applications.

Please Note; The B-TEC battery is capable to be paralleled to a second B-TEC battery of the same size. For maximum performance and lifespan of your B-TEC battery, no more than 4 batteries should be connected together to increase your overall capacity. Overall loads when paralleled should not exceed the current limits of a single battery’s BMS.

The 125Ah G2 battery is able to accept a maximum inverter capacity of 1000W only. Exceeding the maximum inverter capacity can damage the BMS Management within the battery.

If you are requiring a battery system larger than Enerdrive B-TEC battery, please look at the Enerdrive Pro Series Power Pack Systems which can offer multiple parallel and series connections with Active Cell Balancing Protection across the entire pack.

Please note B-TEC batteries must not be installed –
• In vehicle engine bays or in high heat environments, refer to Section 10 – Battery Specifications of the manual.
• In wet areas such as caravan chassis mounts, open ute trays or boat deck areas.
• Inside compartments dedicated to carrying gas.

This product is not suitable to mount anywhere with a possibility of being exposed to the elements. It is an electronic product designed for internal use ONLY.

2023 Standards Update: With some confusion regarding the up coming standards changes and how they will effect battery fitments for future builds including upgrades to existing builds, ENERDRIVE | DOMETIC have created a fitment guide. This guide is specific to our e-LITE and B-TEC range of batteries and has been designed to cover all portions of the battery installation requirements within the new standard. Please note this guide is specific to Enerdrive batteries and does not apply to any other manufacturer.


Enerdrive | Dometic B-TEC Lithium Battery
SKUEPL-100BT-12V-SLIMEPL-100BT-12V-G2EPL-125BT-12V G2EPL-200BT-12V G2EPL-300BT-12V G2
Nominal Voltage12.8V
Nominal Capacity100Ah100Ah125Ah200Ah300Ah
Charge Cycles (DOD – 80% under controlled conditions)>2500 Cycles>2500 Cycles>2500 Cycles>2500 Cycles>2500 Cycles
Standard Charge Specification (Lithium profile charger required)
Battery Charge Temperature0 ̴ 45°C
Normal Charge Voltage CV/CC*14.20 ̴ 14.60V
Standby (Float) Voltage13.50 ̴ 13.80V
Maximum Charge Current80A @ 25˚C for 30mins 60A @ 25°C for 30mins60A @ 25°C for 30mins150A @ 25°C for 30mins190A @ 25°C for 30mins
Recommended Charge Current
For Maximum Life, Charge in the lower amperage range
20~50A 20~60A
40~100A 60~120A
Standard Discharge Specification
Battery Discharge Temperature-20 ̴ 60°C
Battery Output Voltage Range11.00 ̴ 14.60V
Maximum Discharge/Pulse Current100A @ 25˚C ±5˚C for 30 mins 100A @ 25˚C ±5˚C for 30 mins100A @ 25˚C ±5˚C for 30 mins200A @ 25˚C ±5˚C for 30 mins 250A @ 25˚C ±5˚C for 15 mins
Pulse Discharge Current250A for 1.0s450A for 1.0s
Discharge Cut-off Voltage≤11.20V
Circuit ProtectionThe battery is supplied with a LiFePO4 Battery Management System BMS that can monitor and optimize each single prismatic cell during charge & discharge, to protect the battery pack from overcharge, over discharge & short circuit. Overall, the BMS helps to ensure safe and accurate operation of the battery.
Over-Charge Protection
Over-charge Protection Per Cell3.90V ± 0.03V
Over-charge Release Per Cell3.60V ± 0.05V
Over-charge Release MethodDischarge below release voltage
Over-Discharge Protection
Over-discharge Protection Per Cell2.80V ± 0.05V
Over-discharge Release Per Cell3.20V ± 0.05V
Over-discharge Release MethodApply Charge/Voltage ≥12.8V
Battery Manual Reset ButtonNoYes
Over Current Protection
Discharge Over Current110A for 30s – 450A for 1s110A for 30s – 450A for 1s110A for 30s – 450A for 1s220A for 30s – 450A for 1s280A for 25s – 400A for 3.5s
Protection Reset TimeApprox 10s Auto Release
Over Current Release MethodDisconnect Load
Over Temperature Protection
Battery Discharge Over TemperatureProtection to 65°C ± 5°C
Release at 50°C ± 5°C
Battery Charge Over TemperatureProtection to 55°C ± 5°C
Release at 45°C ± 5°C
Short Circuit ProtectionAuto release after 5s
WeightApprox 12.5 KgApprox 12.6kgApprox 15.5 KgApprox 25.0 KgApprox 38.2 Kg
Case ConstructionHi Impact ABS Plastic
Storage Information
Temperature & Humidity Range≤ 30 days -20°C ̴ 60°C, 5 ̴ 75% RH
≥ 90 days -10°C ̴ 45°C, 5 ̴ 75% RH

Note: Specifications subject to change without notice.