Technical data

Chapter 6 175
Working with Batteries
Battery Care
Working with Batteries
a 6-month shelf life at room temperature, before the battery electronics go into
shutdown mode. When a battery has discharged down to a 7.1 volts, it goes into
shutdown mode. When this occurs, the battery electronics self-disconnect,
removing their electronic load from the cells. This provides approximately 1
year of room temperature storage before the cells self-discharge to the point
beyond which they should not be recharged. Once a battery has reached
shutdown mode the battery will undergo a self-test immediately upon being put
into charge. The charger will then attempt to pre-charge the battery at a very low
initial charge rate. If the voltage does not recover, the battery pack has been
allowed to discharge beyond the point of safe recovery. The charge cycle will be
terminated, and the battery pack needs to be replaced.
If the battery does recover from a shutdown mode, the fuel gauge accuracy will
be reduced. Complete a battery recalibration as soon as possible to calibrate the
fuel gauge.
Initial Charge Cycle
New batteries must be rapid-charged (typically to 80%), then trickle-charged
(slowly charged to 100%) for 24 hours, before their first use and for the first two or
three uses.
Because the batteries you receive with the E7495A/B are new, they have a minimal
charge when you receive them. All batteries require a “break-in” period, so don't be
alarmed if a battery doesn't hold a full charge right away. A new battery commonly
will show a false full charge (voltage) as indicated on the test set or charger, and
may not power up the test set upon first use. Before using a new battery, leave it
charging for 24 hours.
Lithium Ion Battery Disposal
When you notice a large decrease in charge capacity after proper recharging, it’s
probably time to replace the battery.
Li-Ion batteries need to be disposed of properly. Contact your local waste
management facility for information regarding environmentally sound collection,
recycling, and disposal of the batteries. Regulations vary for different countries.
Dispose of in accordance with local regulations.