Gisam 4.0AH 4.5AH Rechargeable Lithium-Ion Battery for Cordless Drill/Brushless Wrench/Screwdriver for Makita 18V Battery Pins

During extended use, the battery maintains power without noticeable decline. Charging takes approximately three hours with the included charger, which users consider normal given the capacity. The battery requires no special maintenance. Importantly, these cells CANNOT be charged in the original Makita charger — they require the included charger. Several buyers discovered this only after purchase and had to obtain a compatible charger. However, the battery works without issues in the tools themselves.

Complaints are minimal. Some users mention that older Gisam battery generations had higher capacity (2000 mAh per cell), while new ones have 1500 mAh, resulting in increased internal resistance. Nevertheless, they are satisfied with the price-to-performance ratio. One buyer reported that a battery in a set with impact wrenches did not fit the device due to poor connector quality — this is an isolated case. The proportion of negative ratings is virtually zero (0 %).