Huawei BBU3900 User Manual page 18

1 Safety Information
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Electrolyte overflow may damage the device. It will corrode the metal parts and the circuit
boards, and ultimately damage the device and cause short-circuit of the circuit boards.
General Operations
Before installing and maintaining the storage battery, ensure the following:
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Short-Circuit
Short-circuit of the battery may cause injury. Although the voltage of a battery is low, high
transient current generated by short-circuit will release a surge of power.
Keep metal objects away from the battery to prevent short circuit. If they have to be used,
disconnect the battery in use before performing any other operation.
Harmful Gas
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The lead-acid storage battery in use will emit flammable gas. Therefore, store it in a place with
good ventilation and take precautions against fire.
High Temperature
High temperature may result in distortion, damage, and electrolyte overflow of the battery.
When the temperature of the battery exceeds 60
overflow occurs, handle the acid immediately.
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Prevent the electrolyte from overflowing and leakage.
Use special insulation tools.
Use eye protection devices and operate with care.
Wear rubber gloves and an apron in case of an electrolyte overflow.
Always keep the battery upright when moving. Do not place the battery upside down or tilt
it.
DANGER
CAUTION
Do not use unsealed lead-acid storage batteries, because the gas emitted from it may result
in fire or device corrosion.
Lay the storage battery horizontally and fix it properly.
CAUTION
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C, check whether there is acid overflow. If acid
BBU3900 GSM
User Guide
Issue 04 (2008-09-05)