telecom base battery maintenance

Maintenance Points for Telecom Base Station Batteries

(1) Insulating mats should be arranged in the battery pack maintenance channel.

(2) Batteries of different manufacturers, capacities, and models are strictly prohibited from being used in the same system.

(3) Valve-regulated sealed lead-acid batteries do not need to be initially charged before use, but supplementary charging is required. Supplementary charging voltage should be carried out according to the product technical instructions.

(4) Equalizing charging of valve-regulated sealed lead-acid batteries: Under normal circumstances, when a valve-regulated sealed lead-acid battery encounters one of the following situations, equalizing charging should be performed (if there are special technical requirements, the product technical instructions shall prevail) , the charging current shall not be greater than 0.2C10.

①The float charge voltage of more than two units is lower than 2.18V/unit.

② Leave it unused for more than 3 months.

③ Full float charging operation for 6 months.

④The depth of discharge exceeds 20% of the rated capacity.

⑤ For high-voltage DC, the server input overvoltage protection issue (282V) must be considered when equalizing charging.

(5) The charging capacity of the battery is generally not less than 1.2 times the discharged capacity. When the charging current does not decrease for 3 consecutive hours, the charging is deemed to be terminated.

(6) The float charge voltage of the battery is set according to the product technical instructions, and attention is paid to temperature compensation. Under normal circumstances, the float charge voltage is 2.23~2.25V (25C, 2V monomer). The float charge voltage at a certain actual temperature U = U0 (25°C) + (25-t) × 0.003 (t = ambient temperature ).

(7) During float charging, the maximum difference in voltage of each battery terminal in the entire group should not be greater than 90mV (2V), 240mV (6V), or 480mV (12V), and the internal resistance deviation should not exceed 15%.

(8) Battery capacity testing and discharge testing should be performed regularly.

① A verification discharge test should be done every year, discharging 30% to 40% of the rated capacity.

②It is recommended to do a capacity test every 3 years

③ During battery discharge, the cell voltage and discharge current should be recorded at certain intervals.

telecom base battery maintenance

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