12v Lithium 8Ah Battery waterproof

Lightweight batteries that can be used as a direct replacement of a traditional lead-acid battery


Batteries are assembled in the UK to meet your specifications of size and capacity. About 50% of our batteries are rescued laptop batteries in excellent conditions and saved from landfill. 

We tend to use primarily Japanese brands like Sony and Panasonic as we have seen they are pretty reliable and hold a charge.

Every battery is fitted with a BMS or Battery Management System to protect the battery from operating outside its safe operating area, monitoring its state.

This battery comes with:

  • 3d printed enclosure
  • 12v battery Pack
  • 12v charger

Waterproof Battery ideal for any wet application

  • Battery Model: 12v
  • Nominal Capacity (AH) : 8ah
  • Nominal Voltage (V): 12V
  • Cell Source Resistance (m): within 38m
  • Cell Specification :3.7V 2500MAH 18650 3C Powerful Cell
  • Lifecycle: more than 800 cycles
  • Battery Size : varies
  • Battery Weight: varies


  •    Way of charge:CC/CV
  •    Standard charge Current: 2A
  •    maximum continuous charge current: 8A
  •    Charge Cut-off Voltage: 12V
  •    Cell Overcharge protection Voltage: 4.2V
  •    Charge Temperature Range :0 – 45°C


  •    Max Continuous Discharge Current: 12A
  •    Peak Discharge Current:12A
  •    Discharge Cut-off Voltage:12+/-1 V
  •    Cell Overdisharge protection Voltage: 2.75V
  •    Discharge Temperature Range: -20 – 60°C
12v Lithium 8Ah Battery waterproof was last modified: November 19th, 2020 by frankbatterino