4S 14.8V 16.8V 20A li-ion BMS PCM Battery Protection Board for 18650 Lithium Battery

4S 14.8V 16.8V 20A li-ion BMS PCM Battery Protection Board for 18650 Lithium Battery

Name: 4S 14.8V 16.8V 20A li-ion BMS PCM Battery Protection Board for 18650 Lithium Battery
Brand: Elecbee
SKU: EB0046829
Price: 9.99 USD
Availability: InStock
Rating: 138 / 29 (29 reviews)

$9.99

SKU: EB0046829

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1) high-accuracy voltage detection circuit;

2) terminal of the charger using high voltage device;

3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit);

4) MOS transistor can control the battery charge and discharge;

5) low standby current consumption.

Specifications:

Overcharge voltage range: 4.25-4.35v±0.05v

Size: 35*35*3.6mm

Over-discharge voltage range: 2.3-3.0v±0.05v

Upper limit working current: 10A

Upper limit instantaneous current: 20A

Quiescent current: less than 30uA

Working temperature: -40--- 50 °C

Storage conditions: -40-- 80 ° C

Internal resistance: less than 100mΩ

Short circuit protection: protection, charge recovery

Charging voltage 16.8V-17V

Components: S-8254AA protection chip and D403

BMS Solder Instruction:

B+ connected battery positive;

B1 the connect point between battery 1 and battery 2

B2 connect the point between battery2 and battery 3

B3 Connect the point between battery 3 and battery 4

B- connect to battery negative end

P- + connection charge / discharge positive;

P- connection charge / discharge negative

Note:

1. This protection board can not be used for lithium iron phosphate battery, xenon lamp, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, baby car battery, 775 (4A) or above motor, 1W fisheye LED lamp, Customers who purchase in the above combination should pay attention!

The power range described applies to the following products: low power inverters, massager battery packs, LED light backup power supplies, electronics, solar street light battery packs, monitoring backup power supplies, and other products.

2. For discharge products above 3A, the discharge rate of the battery should be more than 3C.

Magnification calculation formula: 1C rate battery, 2000 capacity is equal to 2AH*1=2A upper limit working current.

3C rate battery, 2000 capacity is equal to 2AH*3=6A upper limit working current.

In the use of the battery will be hot, the battery rate is not applicable, this situation can not be used for a long time, the battery will be damaged quickly.

3. Strictly connect the wiring according to the diagram 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B+), do not intentionally short circuit!

4. After the line is connected, you need to charge it first to have output.

5. When connecting 4 groups of batteries in series, please ensure that the voltage of each group of batteries is the same. If they are different, please fill each group of batteries separately and use them in series. In the discharge test, the battery with a fast voltage drop is a poor battery.

6. Do not mix good battery and poor battery! The closer the capacity/internal resistance of the 4 batteries is, the better! (The effect of 2 good batteries + 2 poor batteries = the effect of 4 poor batteries).

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4S 14.8V 16.8V 20A li-ion BMS PCM Battery Protection Board for 18650 Lithium Battery

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Description

1 x li-ion BMS PCM Battery Protection Board

4S-148V-168V-20A-li-ion-BMS-PCM-Battery-Protection-Board-for-18650-Lithium-Battery-1434421

Reviews (29)
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Q & A

: Where is the origin of Elecbee products? Are they certificated?

2023-03-03

Answer:

Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.

2023-03-03

: What forms of payment do you accept?

2023-03-03

Answer:

Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.

2023-03-03

: When will you arrange shipment?

2023-03-03

Answer:

After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.

2023-03-03

: How to exchange or return?

2023-03-03

Answer:

1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.

2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;

3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.

2023-03-03