A400/B3 LiPo Balance Charger, Model and Plug Options

Choose a balance charger around the exact LiPo pack in your RC model. A400 and B3 are different chargers with different supported cell counts and charging arrangements.

• ✅ Match the pack cell count - B3 is listed for 2S/3S and A400 for 3S/4S.
• ✅ See charging information - A400 has a display while B3 uses indicator lights.
• ✅ Choose the mains plug - EU and US-labelled versions are available.

Match the Pack and Connector Before Charging

Confirm battery chemistry, cell count, balance connector and permitted charge current with the pack manufacturer. Do not assume one charger option covers every 2S–4S battery.

Charge only an undamaged compatible pack in an appropriate supervised area, following both manuals. A charger is not a battery repair tool. Batteries and RC vehicles are not included, and the actual charger label takes precedence over bundle-title claims.

Technical details

• A400: listed 3S/4S LiPo, up to 40W.
• B3: listed 2S/3S LiPo, 10W.
• Mains input listed: 100–240V AC.
• Options: EU or UL/US-labelled plug.
• One selected charger.

Confirm the LiPo pack specification and choose the matching charger.