Installation of battery packs
The installation position of small photovoltaic power generation system batteries should be as close as possible to the solar cells and controllers; For medium and large photovoltaic power generation systems, it is best to separate the battery from the controller, inverter, and AC distribution cabinet. The installation location should ensure good ventilation, convenient drainage, and prevent high temperatures. The ambient temperature should be kept between 10-25 ℃ as much as possible. Insulation measures should be taken between the battery and the ground, with wooden boards or other insulating materials placed to prevent the battery from discharging due to a short circuit with the ground. If there are a large number of batteries, they can be installed on a dedicated battery bracket, and the bracket should be reliably grounded. After the installation of the battery is completed, the total voltage and individual voltage of the battery should be measured, and the individual voltage should be equal. Distinguish the positive and negative poles during wiring to ensure wiring quality. The battery pole and wiring must be in close contact, and a layer of Vaseline oil film should be applied between the pole and the connection point to prevent corrosion and rust from causing poor contact
The function of a battery pack
The function of a battery pack is to store the electrical energy emitted by the solar cell array when illuminated and to provide power to the load at any time.
. The basic requirements for the battery pack used in solar cell power generation systems are:① low self discharge rate ② Long service life ③ Strong deep discharge ability ④ High charging efficiency ⑤ Less maintenance or no maintenance ⑥ Wide working temperature range ⑦ Low price
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