SKU: 27600086514

BDD 4S NCM/LFP BATT ACT BALANCER

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Description

BDD 4S NCM/LFP BATT ACT BALANCER4S Li ion Lipo LIFEPO4 LFP Lithium Battery Active Equalizer Balancer BMS 1. 2A Lithium Battery Active Equalizer Balancer Features Balance instructions: When the equalization light is on, the equalization work is turned on, The equalization light goes out, and the equalization circuit sleeps, The equalization light flashes, the string is dropped, or the circuit is faulty. Principle of equilibrium: This module is the adjacent voltage difference

4S Li-ion Lipo LIFEPO4 LFP Lithium Battery Active Equalizer Balancer BMS 1.2A

Lithium Battery Active Equalizer Balancer

Features

 Balance instructions:

  • When the equalization light is on, the equalization work is turned on,
  • The equalization light goes out, and the equalization circuit sleeps,
  • The equalization light flashes, the string is dropped, or the circuit is faulty.

Principle of equilibrium:

This module is the adjacent voltage difference equalization, the adjacent battery voltage difference reaches more than 0.1V, and the chip internally triggers the equalization work until the adjacent battery voltage difference is within 0.03V and stops working. When used on the battery pack, there is an adjacent voltage difference Triggering the equalization work, the battery pack voltage error will also be pulled back to a more ideal value, reducing battery maintenance costs.

Technical Parameters:

  • Working voltage 2.0V-4.5V, ternary lithium iron battery is universal, LTO lithium titanate battery is not applicable.

Balance current:

  • The adjacent voltage difference is above 0.1V (current is about 0.5-0.7A);
  • The adjacent voltage difference is more than 0.2V (reach the maximum equalization current 1.2A);
  • The smaller the pressure difference, the smaller the equalizing current.

Wiring definition:

  • B-, the total negative pole of the battery pack (the negative pole of the first battery)
  • B1, the positive terminal of the first battery
  • B2, the positive terminal of the second battery
  • B3...and so on.
 

Accessories:

  • The wiring length is 30cm pure copper 22awg terminal line!
  • High-precision energy transfer balance, exclusive balance IC!
  • The wiring diagram of the four strings is as follows, and the number of other strings can be deduced by analogy!
  • Note (The cable plug with 13 strings or more needs to be inserted diagonally, first touch the B-pin and insert it diagonally, otherwise it may cause the board to burn out)

Note: This board is based on the principle of adjacent equalization and cannot be used as a maintenance tool. To connect the battery, it must be used with lithium battery protection. The pressure difference generated by charging and discharging triggers the work of the equalization board to achieve energy transfer balance.

Additional Information

Device Equalizer Balancer
Type 4S | Li-ion Lipo | LIFEPO4 | LFP | Lithium Battery | Active
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27600086514

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Mikal A.
Battle Creek, US
★★★★★ 5
Feels
Size: 3X-Large, Color: White
Fits nice excellent material good quality
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Reviewed in the United States on April 25, 2026
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RobertJ
Los Angeles, US
★★★★★ 4
The Look I Wanted.
Size: Medium, Color: White
I wear mandarin band collar shirts for semi-formal and/or holiday ballroom dances. This shirt was noted as a blend of 63% cotton, 35% poly and 3% spandex. The shirt is shiny and does not have the cotton feel. It is also so sheer that it shows my V-neck undershirt. It seems more of a women's blouse than man's shirt. The neck and sleeve lengths are good, but the body (Medium) is snug since what I rec'd (but did not want) is 'slim'. The seller's description stated the shirts are 'regular cut', but the package for this shirt said 'slim'. Disappointed in that I think the regular cut Medium would be a good fit. I have purchased this style shirt from several Amazon sellers, and all of them have different size issues, ie too tight, too large, long sleeves, etc, etc. I've returned ALL of them, but I have not decided to keep or return this one. The size charts shown on the sellers' webpage(s) are meaningless, so it becomes a situation of 'buy, try and then return'. I think that is why the webpages call out that these are items that are frequently returned!
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Reviewed in the United States on February 23, 2024
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M. EC
Bozeman, US
★★★★★ 5
Quality at your finger tips
Size: Medium, Color: Burgundy
Excellent choice... Price was "on point", material feels good and durable, size fit great, and most of all the colours were great. Actually purchased several. It's nice to receive a product as it is stated and I did. Recommend very much. Oh and, can be worn at various times of the year. Wash and hung to dry is recommended to preserve quality.
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Reviewed in the United States on October 27, 2025
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hughes
Grantham, US
★★★★★ 5
High quality..easy maintenance.
Size: X-Large, Color: Black
These shirts are the best quality, look, fit and value. I own 6 different colors both colar and banded. Could not be happier.
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Reviewed in the United States on December 4, 2025
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T Will
Draper, US
★★★★★ 3
Nice shirt but to shiny for the office
Size: X-Large, Color: Blue
I really like the semi professional, clean, well groomed look of collar-less shirts for my semi formal office. It is appropriate for almost any office occasion. Whether we're getting a visit from the corporate execs., or going out for happy hour...I don't feel over dressed or under dressed. However, for this item: Pros: 1. Excellent classic fit 2. Good stitching and well made Con: It is to shiny! I truly want to purchase every color they have in their lineup, but because of the shimmer, this is probably for someone that wants a night on the town vs a corporate office setting.
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Reviewed in the United States on August 1, 2024

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