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Charging Batteries
• Press the power OFF button.
• Connect the AC power cord between the 631-X power receptacle and an AC power source.
➢ Complete battery recharging takes 14 hours.
➢ The 631-X contains a trickle charger so it may be continually plugged into an AC power
source without damaging the battery pack.
• The battery pack may be charged outside the instrument with an optional AMETEK
BROOKFIELD IDC Battery Charger. (AMETEK BROOKFIELD P/N 4000-1011, for 115
VAC, P/N 4000-1012, for 230 VAC)
Obtaining Maximum Battery Life
There are certain inherent limitations to NiCad batteries. The primary limitation is a memory
effect that occurs when the batteries are partially discharged and then recharged, repeatedly. This
memory leads to a drastic reduction in the usable battery life. To prevent this memory effect,
periodically allow the battery pack to discharge completely, and then recharge the battery pack.
• To obtain maximum battery life, follow these three (3) steps:
➢ At least once a month wait until LO BAT appears on the digital meter before recharging
the battery pack.
➢ Charge the battery pack when the LO BAT indicator comes on. Excessive discharge can
damage the battery pack.
➢ Before storing the instrument verify the power is OFF.
• When the batteries fail to hold a charge, the battery pack should be replaced.
➢ Battery life under normal usage is approximately 1 year, depending on the number of
charge and discharge cycles.
Customer Service 800-528-7411 or 602-470-1414
Page 17 of 52
700-0037 Rev 1.0
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