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Red flashing : BT-51Q protection feature is working automatically.
RL-H2Sa can be used in this state.
Automatic protection feature; In case of overcharge or high or low temperature state exceed-
ing charging range, charging will be stopped or changed to protect battery.
Note
1)
The RL-H2Sa can be charged while using the laser.
2)
Alkaline batteries can be used with the DB-51C rechargeable battery
holder.
3)
Recharging should take place in a room with an ambient temperature
range of 10°C to 40°C (50°F to 104°F).
4)
The battery source will discharge when stored and should be checked
before using with instrument .
5)
Be sure to charge stored battery source every 3 or 4 months and store in
a place at 30°C (60°F) or below. If you allow the battery to be completely
discharged, it will have an effect on future charging.
6)
Recharging of the BT-51Q may sometimes take less than 9 hours be-
cause of its remaining capacity at time of charging.
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