126 U1253B User’s and Service Guide
5Maintenance
Charging the battery
A new rechargeable battery comes in a discharged condition
and must be charged before use. Upon initial use (or after a
prolonged storage period), the battery may require three to
four charge/discharge cycles before achieving maximum
capacity. To discharge, simply run the multimeter under the
battery's power until it shuts down or the low battery
warning appears.
Do not discharge the battery by shorting it or subjecting it to reverse
polarity. Make sure a battery is rechargeable before charging it.
Do not rotate the rotary switch when the battery is being charged.
• Do not rotate the rotary switch from position when
charging the battery.
• Perform battery charging only with a 9 V Ni-MH rechargeable
battery (7.2 V nominal voltage) or 9 V size Ni-MH rechargeable
battery (8.4 V nominal voltage)
• Disconnect test leads from all the terminals when charging
the battery.
• Ensure proper insertion of battery in the multimeter, and follow the
correct polarity.
For the battery charger, the mains supply voltage fluctuations must not
exceed ±10%.
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