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Li-Ion Battery Care
Lithium-ion batteries have significant advantages over many other types of batteries in both
performance and capacity. Following the guidelines below will help maintain both performance
of your batteries and maximize the lifetime.
Li-ion batteries do not develop memory and don’t require full discharge before charging. To
increase the usage lifetime of Li-ion batteries it is recommended to perform more frequent
partial discharges instead of complete discharges. Li-ion batteries will last longer using partial
discharge cycles and try to avoid full discharge cycles.
Li-ion batteries will discharge while setting idle. It is recommended to recharge the instruments
prior to use if it has been setting idle for an extended period.
Battery voltage is independently monitored and indicated in the main menu, as one of four
possible levels or will show the word “LOW”.
When the charger is plugged into line power the charging circuit automatically resumes charging
when the battery voltage falls below the preset threshold.
The Li-ion batteries have built in over-discharge protection circuits, activated if the cell voltage
falls below a threshold that will disconnect the cell resulting in no power! The solution is to
recharge the batteries.
The battery charge light is the best indicator for when the battery is fully charged.
The AT7 series instruments are powered by 2
rechargeable Lithium-Ion batteries. The
battery pack is easily replaceable and comes
as a complete unit. The battery capacity can
support eight hours of normal testing.
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