GK-366U Cordless Glue Gun FAQ and support

Please follow these maintenance guidelines:

1. Overcharging and excessive discharging can damage lithium batteries, especially liquid lithium-ion batteries.
2. Do not charge the unit continuously for more than 12 hours.
3. When the rotation speed noticeably slows down, stop using the unit, switch it off, and recharge the battery.
4. If the unit is not used frequently, recharge it for 3–6 hours every month and allow the battery to discharge gradually from time to time.