QUICK SUMMARY

No, The battery is being charged all the time, The charging current will be decreased based on the  capacity status during the charging process. For NiCD and NiMH battery, it is applicable for constantly charging  without any risk even though no over voltage protection. But  under voltage protection is set up for discharging.

No, The battery is being charged all the time, The charging current will be decreased based on the  capacity status during the charging process. For NiCD and NiMH battery, it is applicable for constantly charging  without any risk even though no over voltage protection. But  under voltage protection is set up for discharging.