4 | CT310 Instruction Manual
Charging Operation
The battery is not charged at the factory, please charge it before use. Charge
the battery for the first time after purchase or extended storage (more than
2 months) may not bring the battery to its normal operating capacity. After
repeating fully charge/discharge cycle for two or three times, the operating
capacity will reach the best performance. The battery life is over when its
operating time decreases even though it is fully and correctly charged. Replace
the battery.
Battery Charger Type
Please use the original charger by Midland; other models may cause explosion
and injure people. After installing the battery, if the radio red light twinkles, it
means that the battery is discharged; please charge it. .
Charging notes
• After the battery is charged to its highest capacity, don’t charge anymore.
• Do not short-circuit the battery terminals or throw the battery into fire.
• Never attempt to remove the casing from the battery pack.
• Please turn the power o before charging. It will aect the battery life when
charging the power-on radio.
• If the radio still shows low power after the normal charge, please change
the battery.
• The average usage time of battery pack is 11 hours. Average usage time is
5% for transmitting, 5% for receiving and 90% for standby.
How to Charge
1. Plug the AC adaptor into the AC outlet, then plug the cable of AC adaptor
into the DC jack, the indicator lights orange for 1s and turns into GREEN-
--waits to charge.
2. Slide the battery or transceiver with battery into the charger; make sure the
battery terminals are in contact with the charging terminals well. LED turns
into twinkling RED---pre-charging begins.
3. Pre-charging for about 5 minutes, LED twinkles stop then charging begins.
4. It takes about 4 hours to fully charge the battery, when LED turns into
GREEN — fully charged.