LCD: Please do not use carbon batteries, disposable batteries, alkaline batteries. The charger can only be used for 1.2v NiMH aa/aaa.1.5v lithium battery aa/aaa.3.7vaa/aaa battery
LED: Please do not use 1.2v NiMH battery 3.7v battery to charge with 1.5v lithium battery charger, the charger is only suitable for charging 1.5v lithium battery