Electric bicycle battery quality problems
Tianjin: electric bicycle casio np-20 battery 2 into the substandard and more information.
Recently, quality and technical supervision bureaus organizations in Tianjin sealed lead-acid battery electric bicycle product quality supervision checks. The total sample of 19 distribution unit sales of 19 manufacturers produce 19 batches of products, results showed that: 16 batches of qualified, unqualified three batches, the product sample pass rate of 84.2%.
Spot checks found in the casio np-100 main quality issues:
First, the rate of capacity of individual products, two hours failed. 2 hours and the rate of the battery capacity is the key performance indicators, reflecting the batteries in normal use of the discharge time. Discharge time is short, then the electric car is also traveling a short distance. Standards require that electric bikes sealed lead-acid battery 2 hours the rate of capacity should be ≥ 100%. There are individual product sampling rate of 2 hours for 82% of capacity, up to standard minolta np-600 requirements.
Second, low-temperature capacity of some of the products failed. Low-capacity related to the battery at low temperature environment using performance determines the condition of the battery used in the winter cold effects. There are three sample batches of low-temperature performance of substandard products, of which a minimum capacity of only 28.6% of rated capacity. The battery acid is mainly within the high density, viscosity increase, resulting in lower emissions of the sony np-f970 battery.
The poor quality spot checks are: nominal suitable Singshih Power Co., Ltd. produced by the revitalization of Eagle Brand 6-DZM-14 Electric bikes sealed lead-acid battery, its capacity, low-temperature performance, two indicators of failure; Standard Kit can be known as the Zhejiang Changxing Power Co., Ltd. produce special brand 6-DZM-14 Electric bikes sealed lead-acid battery, its capacity, low-temperature performance, two indicators of failure with digital camera battery.
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This blog post is via: http://thirdshoping.co.uk/electric-bicycle-battery-quality-problems/
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