User's Guide

36 Chapter 3 Using your Tablet PC
To determine which battery needs to be replaced, see “Checking battery power” on
page 33.
Important: Use only Motion Computing J-Series batteries with the J-Series Tablet PC.
Battery maintenance
To maximize the performance of the tablet batteries, deplete each battery’s charge level to
less than 10% every 30 days. To deplete the charge, install the battery on the tablet and use
the tablet without AC power until the battery charge is depleted to less than10%. Verify the
status of your battery using the battery icon in the notification area of your tablet desktop.
See “Checking battery power” on page 33.
Long-term battery storage (not attached to tablet)
Do not store any batteries with a full charge; this can cause a permanent loss of charging
capacity. For long-term storage, the battery should be charged to a level between 20% and
40% (two contiguous LEDs illuminated) of a full charge. Stored batteries should be checked
every 90 days to determine the charge status. If only one LED or no LED is illuminated,
recharge the batteries to a level between 20% and 40%.
For optimum care, store the battery in a cool, dry environment. Never expose the battery to
temperatures above 60ºC (140ºF).
Note: In storage, the batteries will self-discharge at a rate of 10% of the total capacity per
month.