Hailong-case 48V 17.5Ah (840Wh) down-tube frame battery with Samsung cells, USB output and bottle-cage bolt pattern. The workhorse pack for 48V conversion kits.
The classic Hailong down-tube frame battery, the most common pack format used with Bafang BBS-series mid-drive and rear-hub conversion kits. This 48V 17.5Ah version (840Wh) uses genuine Samsung 35E 18650 cells for dependable range and cycle life. The Hailong G-series case bolts to the bottle-cage mounts on the down tube and locks with a keyed cradle for quick removal. Features a 5V USB output, power button with charge LEDs and a 30A continuous BMS. Supplied with a base plate, mounting hardware, a 54.6V 2A charger and two keys. As a bare battery it has no throttle or motor rating — combined with a 250W pedal-assist kit the bike is UK road-legal (EAPC); combined with a higher-power or throttle kit it is for off-road / private land use only.
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