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The iMAX B3 LiPo battery charger is a compact, easy-to-use balance charger for safely charging 2S (7.4V) and 3S (11.1V) lithium polymer batteries. Its intelligent balance charging monitors each cell individually so cells charge uniformly, improving battery performance and extending battery life.
It suits RC drones, quadcopters, airplanes, helicopters, boats, cars, FPV models and DIY electronics projects, with a simple plug-and-charge experience and no complicated settings.
Bright LED indicators show the charging status, and protection against overcharge and short circuit adds a layer of safety for everyday use.
Supports 2S and 3S LiPo: covers 7.4V and 11.1V packs.
Intelligent balance charging: for a longer battery life.
Independent cell monitoring: each cell is watched on its own.
800mA per-cell balance current: steady charging output.
Bright LED indicators: see the charge status at a glance.
Overcharge and short-circuit protection: built-in safety.
Plug-and-play: no setup or menus.
JST-XH balance connector: fits common LiPo balance leads.
A smart charger does more than push current into a battery. A microprocessor monitors voltage and current throughout the cycle, follows the charge profile that suits the battery chemistry and stops when the pack is full. For lithium packs, a balance connector lets the charger see each cell separately, so it can keep the cells at the same voltage.
Always set the charger to the correct chemistry and cell count, charge on a fire-safe surface and never leave a lithium battery charging unattended.
Good charging habits matter as much as the charger itself. Check that the battery is not puffed or damaged, let a warm battery cool down before you charge it, use a lead that matches the connector and keep the charge current within the limit recommended for the pack. Storing lithium batteries at a partial charge instead of full also helps them last longer, so use a storage function or discharge mode if you will not fly for several days.
Charging 2S and 3S LiPo packs for small drones and quadcopters
RC airplanes, helicopters, boats and cars that use 2S or 3S packs
FPV models and DIY electronics projects
A low-cost second charger for the field box
Beginners who want a simple plug-and-charge unit
The charger takes AC 100-240V at 50/60Hz and ships with an EU plug cable. Connect the battery's JST-XH balance lead to the matching port, and the LEDs will show progress.
It only supports 2S and 3S lithium polymer packs. For other cell counts or chemistries, choose a multi-chemistry charger.
Input voltage: AC 100-240V, 50/60Hz
Balance charge current: 800mA
Cell count: 2-3S
Case: plastic
Color: black
1 x battery charger
1 x EU plug cable
Hobbyists and makers who charge 2S/3S LiPo packs and want a simple, low-cost balance charger.
2S (7.4V) and 3S (11.1V) LiPo batteries.
800mA.
AC 100-240V, 50/60Hz.
Yes: overcharge and short-circuit protection.
No. LED indicators show the charging status.
The charger and an EU plug cable.
| Brand | iMax |
|---|---|
| Balance Current | 800 mA |
| Balance Plug | JST-XH |
| Cell Configuration | 2S-3S LiPo |
| Input Voltage | AC 100-240V, 50/60Hz |
| Selling unit | PCS |
