attempt to charge or use a damaged battery. Do not touch the liquid from a ruptured
battery.
Regularly check the battery’s state of charge. Lithium Iron Phosphate batteries will slowly
self-discharge when not in use or whilst in storage.
Consider replacing the battery with a new one if you note either of the following condi-
tions:
- The battery run time drops below 70% of the original run time.
- The battery charge time increases significantly.
6.3
Cleaning
If necessary, clean the Li-Ion battery with a soft, dry cloth. Never use liquids, solvents, or
abrasives to clean the Li-Ion battery.
6.4
Maintenance
The Li-Ion battery is maintenance free. Charge the battery to approximately > 80% of its ca-
pacity at least once every year to preserve the battery
’
s capacity.
6.5
Storage
The battery product should be stored in a dry, cool, and cool environment;
Generally, the maximum storage period at room temperature is 6 months. When the bat-
tery is stored over 6 months, it is recommended to check the battery voltage. If the volt-
age is higher than 51.2V, it can continue to store the battery. In addition, it is needed to
check the voltage at least once a month until the voltage is lower than 51.2V. When the
voltage of the battery is lower than 51.2V, it must to be charged according to the charg-
ing strategy.
The charging strategy is as follows: discharge the battery to the cutoff voltage with
0.2C(24A) current, and then charge with 0.2C(24A) current for about 3 hours. Keep the
SOC of the battery at 40%-60% when stored;
When the battery product is stored, the source of ignition or high temperature should be
avoided and it should be kept away from explosive and flammable areas.
7
Troubleshooting
To determine the status of the battery system, users must use additional battery status
monitoring software to examine the protection mode. Refer to the installation manual about
using the monitoring software. Once the user knows the protection mode, refer to the fol-
lowing sections for solutions.
Table 7-1: Troubleshooting
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