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21S 5A Li-ion LiFepo4 Battery Active Equalizer BMS
3 in stock
$68.40
3 in stock
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21S 5A Li-ion Lifepo4 Capacitor based Active Battery Equalizer BMS
Description
21S 5A Li-ion LiFepo4 Battery Active Equalizer BMS.
Heltec 21s
DESCRIPTION:
- This is a 21S LiFePo4/lithium-ion 5A equalizer used for 72V battery pack.
- This device acts as a balancer/equalizer to balance the capacity of cells inside 72V battery pack.
- This is not a Bluetooth balancer/equalizer.
- This can be used in lithium batteries of any type including 18650/21700/32650/38120/66160 and any type of prismatic cells etc.
- This can be used in lithium battery applications including solar, RV, Electric bikes, Skate board, camping, Boat, Power tools, Lawn moving and household energy storage systems.
- This can be used for 21S battery pack configuration.
- This is manufactured by Heltec.
There are two different types of Battery equalizers:
- Passive Battery Equalizer or balancer(Passive balancers)
- Active Battery Equalizer or balancer(Active balancers)
- The active battery equalizer in this method the battery equalizer have inductor or capacitors to balance the batteries they will use using their extra energy that stores in the battery with higher voltage to charging the other battery that has lower voltage so the active battery equalizer has higher efficiency than the passive type but it is expensive.
| Technical index | Product model | ||||
| 4s | 6s | 8s | 14s-16s | 16s-21s | |
| Applicable string number | 3/4s | 5/6s | 7/8s | The same | The same |
| Applicable battery type | LI-ION/LIFEPO4(LITHIUM IRON PHOSPHATE)/LTO cells | ||||
| Working range of signal voltage | 2.0 to 4.5V | ||||
| voltage equailization
accuracy |
5mv(typical) | ||||
| Under voltage protection sleep | When the adjacent voltages vary to 0.1V then the balancer/equalizer will active until voltages of the adjacent cells are equal, Otherwise balancer is in Off position. | ||||
|
Product size(mm) |
55*50*16 | 80*50*16 | 105*50*16 | 115*97*25 | 145*113*18 |
| Working environment temperature | 10 ͦ C-60 ͦ C | ||||
| External power | Without external power supply, the whole group is balanced by energy transfer. | ||||
https://bmsbatteries.com/product/21s-5a-li-ion-lifepo4-battery-active-equalizer-bms/
21S 5A Li-ion Lifepo4 Capacitor based Active Battery Equalizer BMS
Additional information
| Weight | 8 oz |
|---|---|
| Dimensions | 6.20 × 6.20 × 0.7 in |
| MPN | Heltec21s |
| Brand | Heltec |
