HPMJ has recently launched the V4-20AH Jump Starter, a 12/24V Mini Booster. This innovative product features newly developed voltmeters that display numbers on the screen, allowing users to easily recognize the required output power. The V4-20AH Jump Starter uses 20AH high-efficiency batteries.

HPMJ Co., Ltd. is an innovative company with strong technical capability focused on developing and manufacturing high-quality emergency power-supply products, including jump starters, super mini boosters, emergency power pack, emergency car starter, battery boosters, solar batteries (power packs wi