Enerdrive ePOWER B-TEC 125Ah Battery 40A DC2DC 20A AC Charger ePRO+ Monitor K-125-01

Sale price$3,210.00




The ePOWER B-TEC G2 is designed and intended for use in deep cycle applications where a single battery is required that meets the amp hour capacity.

The Battery now includes a battery strap! 

Smart Phone Monitoring System

The Enerdrive ePOWER B-TEC G2 battery incorporates wireless Battery Monitoring Technology. You can monitor the following information by downloading the app on your Android™ or Apple® smartphone or tablet device;

  • 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 LiFePO4 Battery Management System (BMS) that can monitor and optimize 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.

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

  • 125Ah Lithium = 200Ah AGM

The ePOWER 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 ePOWER 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.

Please Note: This ePOWER B-TEC lithium battery is capable to be paralleled to a second ePOWER B-TEC lithium battery. For maximum performance and lifespan of your lithium battery, no more than 2 batteries should be connected together to increase your overall capacity. Overall loads when paralleled should not exceed the current limits of a single batteries BMS.


The Enerdrive ePOWER DC2DC Battery Charger is a fully automatic multistage, multi input battery charger with the ability to charge from either an alternator linked to a battery; or via solar power with the in built Maximum Power Point Tracking (MPPT) Solar Controller.

EXPERT TIP: The Enerdrive 50Amp, 60Amp & 70Amp breakers are common accessories suitable for the Enerdrive EN3DC40+ 40A DC to DC charger. Additionally, the 3 pre-wired & fused charging cables are also a great extra accessories, see manuals & drawings for further information. All the accessories are available in the Accessory List above as optional extras.

  • Two totally independent DC Inputs for both engine and solar regulation charging one house battery bank output
  • DC M6 screw terminals that will allow for large battery cable connection between all sources
  • A dedicated Maximum Power Point (MPPT) solar regulator
  • The same battery algorithms as included in our AC mains ePOWER battery charger including a specific lithium charging profile
  • 40A output up to 40+°C with thermo controlled fan cooling
  • Fully programmable LCD display to show which source is charging the battery along with charger status, voltage and amperage
  • Temperature sensor included in charger for more accurate battery charging


The ePOWER 12V 20A Battery Charger is designed to quickly and accurately recharge your batteries using algorithms that help maximise service life. Multistage smart charging technology enables the charger to be connected to your battery banks permanently. The charger can be programmed for Lithium batteries. This setting delivers the full rated output of the charger constantly with the charger switching to power supply mode once the voltage peak is met (indicating a full battery bank).
  • Multistage Charging
  • Separate Battery Banks
  • Programmable
  • Current Control
  • Smart Charging
  • Wide AC Input Range
  • LED Display
  • Silent Mode
  • Temperature Sensor

    Enerdrive ePRO PLUS Battery Monitor

    The ePRO PLUS is the latest generation, highly advanced battery monitor. It consists of an intelligent shunt and a remote control display unit. The shunt has a Grid Optimized footprint for perfect integration with our DC Modular products. The ePRO PLUS can monitor up to three battery banks. The inputs for battery bank 2 and 3 can also be configured for other purposes, like mid-point voltage measurement, keyswitch input, setup lock or backlight control.

    • Complete battery status information at a glance 
    • Supports up to three battery banks (12V, 24V and 48V)
    • ‘Plug and Play’ installation
    • Perfect integration with Enerdrive DC Modular products


    • Enerdrive ePOWER B-TEC 125Ah G2 Lithium Battery EPL-125BT-12V
    • Enerdrive ePOWER 12V 40A DC to DC Battery Charger EN3DC40+
    • Enerdrive ePOWER 12V 20A Battery Charger EN31220 
    • Enerdrive ePRO PLUS Battery Monitor  EN55050


    Model EPL-125BT-12V
    GTIN (Global Trade Item Number) 9342616019689
    Warehouse Enerdrive
    Brands Enerdrive
    Product Category Batteries
    Amp Hours (Ah) 125.0 Ah
    Battery Voltage 12V
    Nominal Voltage 12.8V
    Nominal Capacity 125Ah
    Cycle Life (DOD – 80% under controlled conditions) ≥ 2000 Cycles
    Battery Charge Temperature 0 ̴ 45°C
    Normal Charge Voltage CV/CC* 14.40 ̴ 14.60V
    Standby (Float) Voltage 13.50 ̴ 13.80V
    Maximum Charge Current 60A @ 25°C for 30mins
    Recommended Charge Current for Maximum Life ≤ 40A
    Battery Discharge Temperature -20 ̴ 60°C
    Battery Output Voltage Range 11.00 ̴ 14.60V
    Maximum Discharge Current 100A @ 25°C ± 5°C for 30mins
    Pulse Discharge Current 450A for 1.0s
    Discharge Cut-off Voltage ≤11.20V
    Dimensions 318 x 165 x 215 mm (L x W x H)
    Net Weight (kg) 15.0 Kg
    Manufacturers Warranty 5 Years

    Model EN3DC40+
    GTIN (Global Trade Item Number) 9342616000526
    Warehouse Enerdrive
    Brands Enerdrive
    Product Category Battery Chargers
    Product Type 12v 40Amp DC2DC Battery Charger
    Output Current Rating (Amps) 40.0 Amps
    Charger Mode Output Voltage 13.8V - 15.5V
    Float 13.0V - 13.8V
    Equalize 15.5V
    Charging Control Three Stages
    DC Output Single
    Selectable Battery Type Gel, AGM, Flooded, Lithium, Program
    Charger Efficiency 95%
    Temperature Setting
    Low/ Normal/ High (Battery Temperature Sensor Standard)
    Output System Voltage 12V
    Dimensions 242 x 172 x 74mm (L x W x H)
    Net Weight (kg) 1.9 Kg
    Manufacturers Warranty 5 Years

    Model EN31220
    GTIN (Global Trade Item Number) 9342616000243
    Brands Enerdrive
    Product Category Battery Chargers
    Product Type 12v 20Amp Battery Charger
    Output Current Rating (Amps) 20.0 Amps
    Charger Mode Output Voltage 14.2 – 15.5 V
    Float 13.4 – 13.8 V
    Equalize 16.0 V
    Charging Control
    Four stages (Bulk/Absorption/Float/Maintenance) Two stages (Bulk/Absorption), Constant Power Supply (Program setting), Priority Battery Bank Charging
    DC Output
    Three (1 fully independent, 2 common with diode isolation)
    Selectable Battery Type Gel, AGM, Flooded, Lithium, Program
    Standby Current < 2 mA
    AC Input Voltage 90 to 265 VAC
    AC Input Operating Range
    207-265 Vac (2.0 A Max)90-125 Vac (3.8 A Max)
    AC Input Frequency Range 47 – 63 Hz
    Power consumption (DC 12V) 350W (Full Load)
    Power Factor Correction Yes
    Charger Efficiency > 82%
    Reverse Polarity Yes, (with user replaceable fuse/s)
    Over Charge Yes, unit shutdown
    Over Temperature Protection Yes, unit de-rated and shutdown
    Cooling Forced air ventilation (thermo controlled fan)
    Output Short Circuit Yes, (with user replaceable fuse/s)
    Temperature Setting Hot, Normal, Cold (no sensor connected)
    Battery Temp Sensor Port RJ12 (standard battery temp. sensor supplied)
    LCD Display
    Charging status, Battery Voltage, Output Current & Fault Codes.
    AC Input Connection IEC with Supplied 1.2M Power Lead
    DC Output Connection
    Heavy Duty Terminal (3 banks) – Pan Heads 6mm Thread
    DC Output Ground Single Heavy Duty Common Ground Stud
    Storage Range (temp) -40° to 70° C
    Operating Range (temp) -20° to 60° C
    Humidity 5-95%, relative humidity non-condensing
    Ingress Protection IP32 (Basic drip proof in vertical orientation)
    Output System Voltage 12V
    Dimensions 295 x 206x 86 mm (L x W x H)
    Net Weight (kg) 2.4 Kg


    5-year warranty - Enerdrive warrants that its Products will be free from defects in materials and workmanship (subject to limits, and in normal conditions) for up to 5 years from the date of purchase.


    * Availability Subject to Individual Items.

    ** This bundle is made to order. Please give us at least 3 weeks to prepare.

    *** Where allowed by applicable law and regulations, batteries must be shipped via Ground shipments only. 

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