James Rebarscope R-C-400 Operator's Manual page 42

Simple Guidelines for Battery Maintenance.
1. When allowed to discharge and charge regularly, the end user
will experience a better Battery life span (or cycle).
2. Lithium-ion batteries do not need to be fully charged; as the
charger can aid its performance.
3. Shallow discharges provide more cycles than deep discharges.
4. It is recommended to fully charge the unit (4-6hrs) before a
lengthy field test is performed.
5. As a general rule, it is best to charge the battery both before and
after each use. There is no memory effect, so it is a good practice to
recharge the unit after each use, or at the end of the day - if used
daily.
6. Charge the battery at a moderate temperature. Do not charge
below 0deg C (or < 32deg F).
7. Lithium-Ion batteries suffer from stress when exposed to heat.
Therefore, to lengthen the life of the battery, avoid elevated
temperatures > 30deg C (or > 86deg F).
8. Lithium-Ion batteries may fail when stored for long periods of
time in a discharged state. Thus, before a prolonged storage
period, be sure to apply a charge to the battery. It's recommended
once every 2 months to recharge the battery to keep it fresh. You
should store the Unit (and battery) during this period at room
temperature.
9. Replacing or repair of the battery should be done by a trained
James® Instruments technician. Please follow the repair
procedure found on page 68.
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