Section 5 Maintenance SB822 Rechargeable External Battery Unit
3BSE036351-510 A 197
SB822 Rechargeable External Battery Unit
The Li-Ion battery package is mounted inside the SB822 unit. To prevent problems
you need to charge it on a regular basis.
Specification for the battery package:
• Type: Rechargeable Lithium-Ion, 3.75V 2.3 Ah
• Size: Prismatic 14.5x43x50 mm
• Lithium equivalent content: 0.8 g
Replacing the Battery in an SB822 Rechargable External Battery Unit
To replace the Li-Ion battery:
1. Disconnect the TK821V020 cable connector.
2. Disconnect the 24V supply cable connector
3. Release the SB822 unit from the DIN-rail.
4. Attach a properly grounded ESD wrist strap to your wrist before you proceed.
5. Carefully remove the SB822 unit cover and identify the battery package.
6. Carefully disconnect the battery connector from the PCB.
7. Carefully remove the battery package.
8. Insert the new battery and connect. Reassemble is reverse from disassemble.
9. Install the unit.
10. Dispose of the worn battery package in an approved manner.
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