I have not used my NiMH batteries in several month and they are not holding their charge. How can I fix this?
NiMH batteries will self-discharge if left unused. Generally, within 30 to 60 days, batteries will become completely drained. When using them, you will need to first recharge them. After extended storage, you may need to condition (using the conditioning feature on PowerEx chargers like the MH-C204F) the batteries several times to regain nominal performance.