Replacing A Lithium Battery (Lithium Battery Only) - Huawei DPU40D-N06A3 User Manual

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
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Figure 5-16 Removing the old PSU
Step 4 Install the new PSU.
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Step 5 Switch on the upstream input circuit breaker for the PSU.
Step 6 Take off the protective gloves.
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Follow-up Procedure
Pack the removed component and return it to the local Huawei warehouse.

5.3.6 Replacing a Lithium Battery (Lithium Battery Only)

Prerequisites
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Procedure
Step 1 Put on the protective gloves.
Issue 04 (2020-02-29)
Disconnect the cables from the PWR, LOAD, BAT, and COM ports as well as the
ground cable in sequence. Insulate the cables.
Remove the connecting kit.
Loosen the four screws that secure the PSU to the connecting kit, and take off the PSU.
Install the new PSU onto the connecting kit of the lithium battery and tighten the four
screws.
Install the connecting kit.
Connect the ground cable as well as the cables to the COM, BAT, LOAD, and PWR
ports in sequence based on the recorded information.
Use waterproof tape to seal the cable connections.
You have obtained a pair of protective gloves, a Phillips screwdriver, an inner hex torque
screwdriver, a flat-head screwdriver, and waterproof tape.
You have prepared a new lithium battery.
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