Cleaning And Maintenance; Cleaning; Maintenance; Recharge Requirements During Normal Storage - BYD Battery-Box HV series User Manual

6 Cleaning and Maintenance

6.1 Cleaning

It is recommended that the BYD Battery-Box HV system be cleaned periodically. If the enclosure is
dirty, please use a soft，dry brush or a dust collector to remove the dust. Liquids such as solvents,
abrasives or corrosive liquids should not be used to clean the enclosure.

6.2 Maintenance

6.2.1 Recharge Requirements During Normal Storage

Batteries should be stored in an environment with a temperature range between -10℃～+45℃,
and maintained regularly according to the following table with 0.5C (12.5A) current until 40% SOC
after a long time of storage.
Storage Environment
Temperature
Below -10℃
-10~25℃
25~35℃
35~45℃
Above 45℃

6.2.2 Recharge Requirements When Over Discharged

Please recharge the over discharged batteries in a timeframe that is in accordance to the following
table, otherwise the over discharged battery modules will be damaged.
Storage Environment Temperature
-10~25℃
25~45℃
BYD Battery-Box HV User Manual
Recharge conditions when in storage
Relative Humidity of
Storage Environment
/
5%~70%
5%~70%
5%~70%
/
Recharge conditions when battery is over discharged
Storage Time
prohibit
≤12 months
≤6 months
≤3 months
prohibit
Storage Time
≤15 days
≤7 days
SOC
/
30%≤SOC≤60%
30%≤SOC≤60%
30%≤SOC≤60%
/
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