Lenovo ThinkServer RD240 Hardware Maintenance Manual page 82

e. The temperature of the battery card assembly is generally 15-20°C (59-68°F) higher than the
ambient temperature during fast charge. Therefore, to complete a fast charge cycle, the ambient
temperature should be lower than 45°C (113°F). If the ambient temperature exceeds 45°C (113°F),
the fast charge cycle will terminate prematurely, thus preventing the battery card assembly from
reaching a fully charged state.
Attention:
• When attaching the battery card assembly to a PCI Express slot, center the Phillips-head screw
driver to avoid damaging the screw head and do not over-tighten the screws as you might damage
the battery card assembly.
• The battery in the battery card assembly must recharge for at least six hours during fast charge
under normal operating conditions.
To install the battery card assembly onto the RAID controller, do the following:
a. Note the bottom view of the battery card assembly.
Figure 46. Bottom view of the battery card assembly
1
J1 board-to-board connector
2
J2 remote connector (reserved for use)
b. With the front side up, place the RAID controller on a flat, clean, static-free surface.
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ThinkServer RD240 Hardware Maintenance Manual