Li-ion Battery Chargers

Smart aluminium-case chargers for lithium-ion battery packs from 10S to 20S, in 5A and 10A versions. Every charger comes with an NZ/AU mains plug and your choice of output connector — XT60, XT90, Anderson, XLR, GX16, bare wire and more.

Which charger do I need?

Match the charger to the number of cells in series in your pack (the “S” count). If you only know the pack’s nominal voltage, use the table below. Not sure? Get in touch and we’ll check it for you.

Cells in seriesPack nominal voltageCharger output (full charge)5A from10A from
10S36V42V$138$176
11S40.7V46.2V$158—
12S44.4V50.4V$138$236
13S48V54.6V$138$257
14S52V58.8V$138$257
15S55.5V63V$201$319
16S60V67.2V$201$313
17S63V71.4V$201$405
18S66.6V75.6V$176$405
20S72V84V$176$236
Prices in NZD incl. GST. 5A suits most e-bike and scooter packs; 10A charges larger packs roughly twice as fast — check your BMS can accept the higher charge current.

All chargers

Good to know

  • Li-ion only: these chargers are for lithium-ion (NMC, LiCoO2, LiMn2O4, LiPo) packs charged to 4.2V per cell. Don’t use them on LiFePO4 or lead-acid batteries.
  • Automatic cut-off: constant-current / constant-voltage charging that stops when the pack is full. LED shows red while charging, green when done.
  • Protection: short circuit, over-current, over-voltage, reverse polarity and over-temperature.
  • Delivery: estimated 7–16 working days from order.
  • Check your connector polarity matches your pack before charging.