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B. CHARGING LITHIUM ION/POLYMER BATTERIES Never leave batteries
unattended when charging. Monitor the temperature of the battery
occasionally during the charge cycle. If batteries become hot,
disconnect immediately.
Because of the volatile nature of Lithium batteries, great care must be
taken when charging these cells. If improperly or over charged, there is
the risk that the battery will explode or catch fire. Please follow
instructions and/or recommendations from battery manufacturer when
selecting proper charge rate.
You should always select 5mV peak threshold for all Lithium Ion / Polymer
batteries. You should also start with a fully discharged battery and do a
“capacity” charge as stated above in step 8. However, do not enter a
capacity higher than the rated capacity of the battery or damage may occur.
If you do not begin with a fully discharged battery, then you will have to
estimate the remaining capacity in the battery. We recommend that you use
a charge rate at no higher than half (0.5 times) the rated capacity (example
for 600mAH battery the charge rate = 0.5 x 600 or 0.30 amps). Also, be
careful not to discharge the battery too low (3 volts per cell), or damage to
the battery may occur. We recommend that you use a discharge rate no
higher than 0.2 amps.
C. CHARGING 12V LEAD ACID OR GEL CELL BATTERY Never leave
charger unattended when in use.
We recommend using a charge rate of no higher than 0.2 times the
capacity of the battery. (example for 7AH battery the charge rate = 0.2 x 7
or 1.4 amps) Also, use a peak threshold setting of 5mV.
D. DISCHARGING BATTERIES
The 969 has a built in discharge feature in it. You can discharge your
batteries on Channel A only. Once a battery is hooked up to the charger
and the voltage is displayed, you can select the discharge function by
hitting the “Discharge” button. You can then select the discharge rate you
wish to use in the same way you would select the charge rate. The
maximum discharge rate available is 3.00 amps. You can then hit the “Start”
button to start the discharge process. You can also discharge on Channel A
while you are charging on Channel B. If you want to use both channels you
should finish both channel’s settings before starting one channel. This will
make the setting process faster. Once one channel is running, the charger
will only take one setting command per second for the other channel. This
is slow if you are changing many settings.
E. TESTING BATTERY CAPACITY
You can test your battery pack’s capacity compared to the rated capacity of
the pack. Simply discharge the battery first, and then charge battery using
the recommended settings from above. Then, discharge your batteries
using a discharge rate of: rated capacity ÷ 5. This will give you a good
indication of the condition of your battery.
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