48V li-ion 100A 150A Rack Mount LiFePO4 Battery 

How to judge whether a lithium ion battery is a grade A product? 1. The fullness of the appearance. Generally, lifepo4 battery of about 2000mAh are relatively large in size. The workmanship is more delicate or the packaging is more plump. 2. Hardness, you can gently pinch or moderately squeeze the middle part of the lithium home battery. The hardness is moderate, and there is no soft squeezing feeling, which proves that the lithium energy storage is a relatively high-quality battery. 3. Weight, go out the outer packaging to see if the weight of the renewable energy battery is relatively heavy, if it is heavy, it is a high-quality lifepo4 battery. 4. The most important point is that during the charging process of the back-up lithium 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 ok. Generally, the quality of lithium batteries with high-quality protection boards is better th…