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• LEDs (17) and (18) flashing together indicates that the battery level
is low.
• The laser unit switches off automatically when the battery is very low.
In that case, recharge the battery.
• Each charging time is about 5 hours, but not more than 24 hours.
• The best charging temperature: 0℃ to 20℃ (32℉-68℉)
• If the lithium battery is not used for extended time, please charge the
lithium battery once every 3 months.
Note:
• The battery can only be charged with the battery charger
provided instead of being charged in the laser unit directly.
• The battery can be used only in this laser unit. Any other use
！
may cause injury or fire.
• Make sure there are no conductive objects around the battery
contacts. Short-circuiting of these contacts can cause burn
injuries or fire.
• Do not open the rechargeable battery. This could cause
short-circuits.
2. AA Battery Safety:
• Please pay attention to the position of the positive and negative pole.
• Please upload the AA batteries in the battery holder before put into
the laser unit.
• Please use large-capacity rechargeable batteries or AA battery above
1500mAh for each when replace batteries.
• Do not mix old and new batteries. Replace all of them at the same
time with new batteries of the same brand and type.
！
Note:
Avoid charging the laser unit without taking out the AA
batteries.
Attention:
!
• Keep the battery away from children, and pets.
• Do not charge unattended.
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