30X18650 Lithium Ion Battery Case 21V BMS Charging Protection Circuit Board PCBA For Hongsong For Makita 18V Li-ion Batteries

DIY (semi-manufactured goods)Advance notification(Very Important):
(1). To use this product, you need to have some professional knowledge and experience. We do not guarantee that you can use it well.
(2). You must have 30 pieces of 18650 POWER li-ion batteries and the tools such as spot welding machines, soldering irons, multimeters, and suitable chargers, etc.
(3). This product has no after-sales service. After placing an order, it will not be returned! No refund!

       No after-sales!
       No refund!
       No return!
       Please purchase with caution!
(4). The size and color in the picture are for reference only. The actual received goods shall prevail. If you raise any objections based on “color and size differences”, please do not purchase!
(5). The PCBA label and nickel may not be exactly the same as shown in the following picture and may change with the batch. Please do not mind! Do not purchase if you mind.
 

PCB Specification:
1. Built-in IC detects cell voltage current. And remember the number of uses!
2. Detection and protection battery: Overheat protection, overvoltage protection, undervoltage protection, overcurrent protection, overcharge protection.
3. PCBA Color: Blue, or Green, or Red, etc. any color, PCB color and version number are different according to the actual latest inventory.
4. PCBA design may change due to changes in the supply chain and processing technology.

Please be kindly noted:If you have any objection to the following two items, please do not order !
    (1). PCB colormay be any color according to our stock,
    (2). PCB design may change with the same function and performance guaranteed .   
Once you place an order, you agree to the above two terms by default, and you are not allowed to submit disputes for the reasons of “different colors, design changes, wrong version of goods” and so on.

Preparation before assembly:
1. If a new core is used, please note:
    a. 18650 power lithium battery core must be selected(DISCHARGE CURRENT > 10C),
    b. A group of 30 cores must be equipped with resistance and capacitance to make their voltage the same.
2. If the old battery is repaired, please test the voltage at both ends of each cell. If the voltage is different, please charge each cell to the same voltage value.

Very important:
    Ensure that the voltage of each cell is the same before welding PCB.

Package include:
As the following picture: no battery cell

 

 

 

 

 

 

Kindly Reminder (Very Important!!! ):

4. The battery connector is a nickel plated steel plate that can be attracted by a magnet, as shown in the following video:

If you have any objections to this, please do not place an order to purchase!