electric folding bikes inspection methods

A visual inspection: the appearance of deformation, breakage, leakage, contamination and other tests.
Two voltage measurements: total voltage measured first, and then measuring the single cell voltage, and one by one to check whether the Folding electric bikes connection is intact normal.
3 Battery check valve Ministry: Take the lid open above to see if the safety valve is surrounded acid and other Electric folding bikes, with hands open safety valve, check for adhesions, loose or damaged and so on.
4 Battery internal checks: Check the main items: (1) Electrolyte: visual humidity inside the battery electrolyte, strips of wood and other heuristics should be moist feeling. (2) Check the battery voltage of a single cell determination "short" and "circuit breakers" Fault: single cell voltage measuring method is to measure the contact with the battery wire bus bar.
5 Battery tightness tests: Pressure test device modified sphygmomanometer, inflatable battery, the pressure in the 30-40Kpa, observe the pressure gauge is stable, can also be placed in the water to check the battery.
6 Capacity Check (by JB/T10262-2001 standard): The battery connection is fully inflated discharge, the discharge current 5A.