Replacement Of Main Component; Replacement Of Battery Module; Replacement Of Control Module (Bms); Battery Storage And Recharge - Pytes HV48100 User Manual

7.4 Replacement of main component

DANGER
HV48100 is a high voltage DC system, operated by qualified and authorized person only.
The power cables and plugs always carry high voltage DC power from serial connected
battery modules.
Be cautious to handle the power plugs.

7.4.1 Replacement of battery module

Step 1 Use a charger to charge the new battery module and existing modules, both to full
(SOC 100%);
Step 2 Turn off the power of whole system. Make sure there's no power at P+ or P- terminals.
Step 3 Pull out the Plugs of Power Cable +/-. and communication cables.
Step 4 Dismantle the 4 screws from front panel of battery module.
Step 5 Handle the battery module out of the rack and put it in place.
Step 6 Install the new battery module and connect the cables.
Step 7 Power on the system.

7.4.2 Replacement of control Module (BMS)

Step 1 Turn off the power of whole system. Make sure there's no power at P+ or P- terminals.
Step 2 Pull out the Plugs of Power Cable +/-. and communication cables.;
Step 3 Dismantle the 4 screws from front panel of battery module.
Step 4 Install the new control module (BMS) and reconnect all the cables.
Step 5 Power on the system by referring to chapter4.
CAUTION
Mark the cable numbers before pulling out the communication cables, to avoid cable wrong
connection later.

7.5 Battery Storage and Recharge

For long-term storage, the battery cells should be stored in the environment with temperature
range of -30°C ~60°C, relative humidity <65% and no corrosive gas.
It is recommended to discharge and charge the battery every 3 months. The longest
discharge and charge interval shall not exceed 6 months and SOC is charged to not less than
90% of each charging.
CAUTION
If above instructions are not followed for long term storage, battery cycle life will significantly
reduce.

8. Emergency Handling

8.1 Batteries Leaking

DANGER
The leaked electrolyte is a colorless viscous liquid that may evaporate rapidly and is flamma-
ble, turning into white salt residues. The electrolyte has a pungent smell and is corrosive,
irritating to eyes and skin. Avoid contacting with it.
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