Updated: 17 Feb 2025

bms for 20s battery packs

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Updated: 17 Feb 2025

#1

Best Choice
JKBMS Smart BMS with Heat CAN RS485 8S-20S 200A 2A Active Balance with Bluetooth Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A20S20P-HC)

9.7

JKBMS

-17%

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Main highlights

Wide Application: This versatile BMS works with Li-ion, LiFePO4, and LTO batteries. Ideal for Solar Camper Van, Compact Electric Car, and Electric Cargo Tricycle and so on, it offers seamless integration and top performance

Enhanced Safety: Safeguard your battery with protection against overcharging, overdischarging, overcurrent, short circuits, and temperature extremes. JKBMS Active Equalization extends battery life and enhances performance

Easy Connection: Effortlessly manage your battery with JK BMS mobile app for Android and iOS. Bluetooth connectivity allows you to monitor status, adjust settings, and control charging/discharging from your device

-17%
#2

Value for Money
DALY Smart BMS Li-ion 20S 72V 100A with Programmable Bluetooth Module and Common Port Cooling Fan

9.6

DALY

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Main highlights

[Programmable Temperature protection]: Li-ion battery pack will stop all current when its temperature reaches limit.

[Programmable Over-charge over-discharge protection]:Li-ion battery pack will stop charge when its voltage reaches limit and stop discharge when its voltage reaches limit.

[Discharge and charge current]: BMS supports up to 100 amp continuous discharge or 50A charge current. Perfect for your high current applications.
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#3
Bisida 20S BMS 72V Lithium Ion Protection Board with Balance Wire and NTC, Common Port, Multiple Protection, Battery Management System for Solar Energy Storage Lithium-ion Battery Pack (20S 72V 50A)

9.5

Bisida

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Main highlights

【Wiring Method】The wiring methods of Common ports of BMS: B- connection battery pack negative , C- connection charging negative/output negative. All the positive electrodes are the total positive pole from the battery pack.

【Operating Temperature】Bisida's BMS Lithium Ion supports (3.7V) lithium-ion battery charging and discharging in zones from 2.65V to 4.25V, with low temperature protection up to -20°C and high temperature protection up to 70°C. (Different voltages and currents have different parameter details. Confirmation required. Please communicate with the seller to confirm accurate data)

【Multiple Protection】Bisida 36V BMS has a variety of protection functions, such as Overcharge Protection, Overdischarge Protection, Overcurrent Protection, Short circuit Protection, Temperature Protection, Disconnection protection,Balance protection
#4
BMS LiFePO4 Li ion 3S-20S 12V-72V 20A-500A Lithium Battery Management System Protection Circuit PCB Board Optional RS485/CAN/WiFi, DIY Lithium Iron Phosphate Cell 3.2V or Lithium Ion Battery 3.7V

9.3

HiXiMi

-11%

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Main highlights

【Smart BT BMS】With the BT module, after downloading the "SMART BMS" APP, the cell phone can be connected to the battery to view or set the battery parameters. Multiple communication functions and extended function port, support WiFi, CAN, RS485, dual UART communication interface function. Except for the BT module, other function modules need to be purchased separately.

【Multiple Functions】Pre-charging function; low power consumption; 100mA passive equalization current; overcharge protection; overdischarge protection; overcurrent protection; short circuit protection; temperature protection; waterproof protection.

【Li ion or LiFePO4 BMS】Depending on your battery type, choose the right BMS. Li ion BMS is for 3.7V cells, LiFePO4 BMS is for 3.2V cells. The BMS current needs to be selected based on the load power and the maximum continuous discharge current of the cell. Generally, the BMS current should be greater than the maximum continuous discharge current of the battery cell.

-11%
#5
Bisida 20S BMS 64V 100A Lifepo4 Battery Management System PCB Protection Board with Balance Wire and NTC,Ten Functional protections, Common Port, for Lifepo4 Battery Pack (20S 64V 100A)

9.0

Bisida

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Main highlights

【Preparation Before Installation】Before installing the BMS protective board, it is necessary to match the voltage, capacity, and internal resistance (the voltage difference between the battery per section is not higher than 0.05V, the difference between the internal resistance is not more than 5MΩ, and the capacity difference is less than 30mAh). Otherwise the battery pack will not be able to charge.

【Operating Temperature】Bisida's BMS supports (3.2V) Lifepo4 battery charging and discharging in zones from 2.3V to 3.65V, with low temperature protection up to -20°C and high temperature protection up to 70°C. Different voltages and currents have different parameter details. Confirmation required. Please communicate with the seller to confirm accurate data.

【Multi -Function Protection】Bisida's BMS has a variety of protection functions, such as over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection, Downtime protection，Voltage balance(passive balance), etc.
#6
Basasa 8-20S 450A BMS Battery Protection Module PCB Board with Balance Leads Wires for Li-ion, Lifepo4, LTO Battery Smart Balance Protection Board

8.9

Basasa

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Main highlights

③Various protection functions for over charging and over discharging, charge and discharge overcurrent, short circuit protection function processing.The software's overvoltage, undervoltage, temperature, and overload protection function processing.

②Peak Discharge Current 450A, Continuous Discharge Current 180A; Balance Current 120mA. Accurate SOC calculation, with automatic learning SOC function Size：2.76* 5.51 *0.67 inch, 13CM*7CM*1.7CM

① For the 8-20 series Li-ion Battery, Lifepo4 Battery, LTO Battery packs of ebike, electric motorcycle batteries, energy storage and other products; The protection board has strong loading capacity, and the maximum continuous discharge current can reach 180A and peak 450A. Parameters can be adjusted according to customer needs.
#7
Smart BMS 8S-20S 40A 0.4A Active Balance PCB Battery Protection Board Built-in Bluetooth APP Control RS485 Port for LiFePO4 Lithium Battery Pack

8.7

ELCCOTYA

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Main highlights

The battery protection board with small size,easy setup and full in function;Works with LiFePO4,Li-ion and LTO batteries pack.Widely used in battery packs of small sightseeing vehicles,mobility scooters,shared cars,high-power energy storage and so on

Smart bms protection board is a management system tailored for large capacity series lithium battery pack with voltage acquisition,high current active balancing, protection against overcharging,over-discharging,over-current and short circuits

8S-20S 40A 0.4A, working voltage range 20-100V smart bms. The high current active equalization technology can ensure the consistency of the battery to the greatest extent,improve the battery range and delay the aging of the battery
#8
DALY Smart BMS Li-ion 72V 20S 100A with UART Communication, Resetting Bluetooth Module,Common Port for Rated 3.7V Power Converter UPS (Smart BMS,100A)

8.6

DALY

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Main highlights

[Smart BMS]Check battery status and modify parameters at any time through Bluetooth app or PC Software.Quality Guarantee--- ISO/ FCC/ RoHS/ PSE/ CE APPROVED

[Double Protection]Double protection by injection patent technology and patent shell.Waterproof,dustproof,shockproof and anti-static;High-quality components, pressure-resistant and durable material, high acquisition accuracy.Easy to install.

[DALY BMS]Overcurrent,Overcharge,Overdischarge,Short circuit, Temperature protection.DALY BMS maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
#9
ratuzzii 20S Lifepo4 60V Battery Balancer - Electric Lithium Battery Active Balancer for LiPo, Li-ion, and LFP, Energy Transfer Equalization Module with 5A Balance Current (20S Lifepo4 5A)

8.5

ratuzzii

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Main highlights

with large active balancing current, the balancing current can reach up to 5a, and the balancing voltage precision can be within 5mV.the current consumption in standby period which can be less than 30ua,and significantly reduce power loss when battery stay in standby period

our balancer module was adopted high quality integrated chip as balance management brain ,which provides a simpler, smarter and more relaible structure with a compact design for balancer installation which can work with various 20S lifepo4 BMS with excellent balance support for your 60v bms

active balance processing: 1. active balance will work throughout in the whole charging process. 2. controllable Balance in standby process 3. automatically starting balance when the voltage difference between cells exceeds 45mv
#10
DALY Smart 20S BMS 72V 100A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 20S 72V，100A)

8.4

DALY

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Main highlights

【Smart BMS】With the WiFi module, lithium batteries can be remotely monitored through the Internet, regardless of the distance.When the BMS detects any abnormality in the battery pack, it will send alert via the smartphone app.

【New Upgrade】Smaller size; Parallel protection; Pre-charging function; 100mA passive equalization current; Low temperature rise; Working condition indicator;Consistent Chg/Dischg cuurrent.

【Multiple Protection】Overcharge Protection; Overdischarge Protection; Overcurrent Protection; Short circuit Protection; Temperature Protection;Waterproof Protection.

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bms for 20s battery packs

JKBMS Smart BMS with Heat CAN RS485 8S-20S 200A 2A Active Balance with Bluetooth Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A20S20P-HC)

9.7

Main highlights

DALY Smart BMS Li-ion 20S 72V 100A with Programmable Bluetooth Module and Common Port Cooling Fan

9.6

Main highlights

Bisida 20S BMS 72V Lithium Ion Protection Board with Balance Wire and NTC, Common Port, Multiple Protection, Battery Management System for Solar Energy Storage Lithium-ion Battery Pack (20S 72V 50A)

9.5

Main highlights

BMS LiFePO4 Li ion 3S-20S 12V-72V 20A-500A Lithium Battery Management System Protection Circuit PCB Board Optional RS485/CAN/WiFi, DIY Lithium Iron Phosphate Cell 3.2V or Lithium Ion Battery 3.7V

9.3

Main highlights

Bisida 20S BMS 64V 100A Lifepo4 Battery Management System PCB Protection Board with Balance Wire and NTC,Ten Functional protections, Common Port, for Lifepo4 Battery Pack (20S 64V 100A)

9.0

Main highlights

Basasa 8-20S 450A BMS Battery Protection Module PCB Board with Balance Leads Wires for Li-ion, Lifepo4, LTO Battery Smart Balance Protection Board

8.9

Main highlights

Smart BMS 8S-20S 40A 0.4A Active Balance PCB Battery Protection Board Built-in Bluetooth APP Control RS485 Port for LiFePO4 Lithium Battery Pack

8.7

Main highlights

DALY Smart BMS Li-ion 72V 20S 100A with UART Communication, Resetting Bluetooth Module,Common Port for Rated 3.7V Power Converter UPS (Smart BMS,100A)

8.6

Main highlights

ratuzzii 20S Lifepo4 60V Battery Balancer - Electric Lithium Battery Active Balancer for LiPo, Li-ion, and LFP, Energy Transfer Equalization Module with 5A Balance Current (20S Lifepo4 5A)

8.5

Main highlights

DALY Smart 20S BMS 72V 100A with WiFi Module and CAN 485 Communication Protection Board for Li-ion Lithium Battery Pack(Li-ion 20S 72V，100A)

8.4

Main highlights

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