Method 1: Check the appearance and packaging
Lithium-ion
battery products can be judged from the packaging and appearance.
Although the appearance of general products is deceptive, some inferior
products can also be screened out from the appearance.
Method 2: Look at the product battery
First
check whether the battery is brand new, because there are some bad
workshops on the market that use second-hand batteries to make
lithium-ion batteries. Good batteries are safer, and lithium-ion
batteries are of better quality!
Method 3: Test live working
During
the live working process of the lithium-ion battery, if the two poles
of the battery are not hot after continuous discharge for about 10
minutes, it proves that the battery protection board system is perfect.
Generally, the quality of the lithium-ion battery with a high-quality
protection board is better than that of the ordinary lithium-ion
battery.
Method 4: compare weight
The
weight of a lithium-ion battery is directly proportional to its
capacity. If it is a polymer lithium-ion battery, if the weight
difference is too large, the capacity will definitely be insufficient,
but the capacity of some batteries is different. In addition, you can
feel the weight of the battery from the outer packaging. If the weight
is heavier, it is more likely to be a high-quality lithium-ion battery.
Method 5: Detect internal resistance and maximum current
In
fact, the fastest inspection method to judge the performance of
lithium-ion batteries is to measure the internal resistance and the
maximum discharge current. A good quality lithium ion battery has a very
low internal resistance and a large maximum discharge current. Use a
multimeter with a 20A range to directly short-circuit the two electrodes
of the lithium-ion battery. The current should generally be around 10A,
or even higher, which can be maintained for a period of time. A more
stable battery is a good battery.
BENZO Energy Technology Co.,Ltd
UFine Technology Co., Ltd
Site: www.bz-battery.com / www.benzoenergy.com
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