What do you mean by “no memory effect” on NiMH batteries?
Memory is a type of problem that traditional NiCD batteries would develop. You probably have heard that in order to maintain the life and performance of rechargeable batteries, you have to fully drain the batteries before recharging them. Thanks to “memory free” technology featured on NiMH batteries, you can charge them anytime you wish, regardless if the batteries are fully drained or not.
