What are the most important factors to choose battery supplier besides price ?

2021-10-13 13:14:54 Deligreen 1044

CALB Available cells:

CALB grade A+ : 72AH/100AH/163AH/230AH 

(230AH is the best seller, we stocked it in USA, one shipment every month)

CALB grade B: 68AH 100AH 113AH 176AH(grade A, storaged for some time,brand new, Intact QR code, stable supply )


CALB Grade B cells real situation

There are so many options when choosing li ion batteries. 

Many foreign friends are confused how to identify and how to choose.

Now we'd like to share our experience. 

Welcome to exchange your idea with us : info@deligreenpower.com 


CALB grade A cells unit price above 0.6USD/AH. 

It is used for top-level projects, developed countries.

CALB Grade B cells are brand new, not disassembled from packs.

the main difference is :the former are never recycled before.

the latter are used for some cycles.for the price of the former is higher.

for the quality control,  grade B cells are controlled by the factory, no defectiveness,

the only thing is the consistency is not so perfect. 

only if the project isn't so strict for consistency, the grade B cells are no problem ,

the performance is as good as grade A.

while disassembled cells have potential problems: such as zero volt, lower capacity,high inner resistance

so these cells will have some potential risks.

currently we have CALB NCM 58AH,this model is very popular for two wheel vehicles.

113AH, good for three-wheel and four-wheel EV.

Welcome to contact us : whatsapp: 8615074995718 


Among grade B cells, there are fake cells.Some people inject electrolyte for the second time.

and then these cells go to the market again. the safety is unsure. so please be careful about this.


on the other hand, there are "grade A'' cells which has been stocked for some time.

take CALB 68AH as an example. they were produced in 2019, grade A. The capacity is above 75AH in 2019.

Till now the real capacity is above 72AH,inner resistance is still low since they are never used before.

the appearance is perfect, the quality is reliable. they will be selected strictly before shipment in the factory.

for any defective cells will be dealt with "T grade" which won't go to the market.

These "grade A" cells are very cost effective, with one year warranty offered by CALB factory.


To be frank the cells market complexity is far more than what we can imagine.Every field is the similar.

when selecting cells, we must have several standards, price is absolutely not the only standard!

First: brand, CATL CALB,EVE,LISHEN2,REPT,GANFENG are nice brands.Reliable brand is worthywhile of higher price.

Second, supply chain. You must choose reliable supplier with good reputation. Even if anything dissatifactory,

they will face it with you and solve the problem together.

Third, stability for the supply chain. The products should be available for a long time.

We must meet the three factors to support our customers. 

Price is the last factor that we need to consider,only if the price is in the acceptable range, 

we must consider the previous 3 factors. 

as the raw material cost is rising, the price of the li ion batteries tends to go up.

This is un-avoidable.  Every challenge exist a chance.

Welcom to contact us: whatsapp: 8615074995718 


CALB grade A : 72AH/100AH/163AH/230AH 

(230AH is the best seller, we stocked it in USA, one shipment every month)

CALB grade B: 68AH 113AH 176AH(grade A, storaged for some time,brand new, Intact QR code, stable supply )

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