CHARGE
Do not use the battery (Main, D-Tap, USB) while charging. If so, it may cause a charging error or damage the charger. Charge the battery to full before first use.
When you charge this battery, Battery capacity LED gauge button will turn on indicating the capacity being charged. Lithium ion batteries have a slight self discharge, therefore it is recommended to charge prior to use. 
 
DISCHARGE
Do not use the battery (Main, D-Tap, USB) while charging. If so, it may cause a charging error or damage the charger. Camera's low voltage alarm is recommended to set 13~13.5V Battery will stop at 12V to extend its life.* Microwave transmitters with 5W outputs or over should be kept as far away from the battery. It may disrupt or stop supplying power.
Be sure to remove the battery from the device after use. If so, it will consume large standby power and over-discharge protection may be activated. USB is activated by pushing Battery capacity LED gauge button. USB power will turn on automatically 30 minute after no use. Battery run time reduces when it is working below or above the recommended temperature range.