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Product Details:
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| Keywords: | Battery BMS Board | Product Name: | Battery Management Systems |
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| Application: | Battery Packs | Usage: | Lithium Battery Packs |
| Number Of Layers: | 3 Layers | Communication: | No |
| Size: | 95*58*17MM | Weight: | 0.065kg |
| Temperature Protection: | Yes | Over Discharge Protection: | Yes |
| Over Charge Protection: | Yes | Selling Units: | Single Item |
| Single Package Size : | 13X8X9 Cm | Single Gross Weight: | 0.400 Kg |
| Package Type: | Bubble Pack And Carton | Brand: | Passional |
| Highlight: | Wheelchair Lithium Battery BMS Board,PCB BMS 24V 7S 20A,24V 7S 30A Battery BMS Board |
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Wheelchair Lithium Battery BMS Board PCB BMS 24V 7S 20A 30A
Battery BMS Board Description:
Wheelchair Lithium Battery BMS Board PCB BMS 24V 7S 20A 30A, our work creates a BMS that is safe enough for you. The battery BMS board has been tested and is generally used with -go°C-7oc. The high-performance aluminum alloy radiator provides strong thermal protection and reduces the temperature rise of the protection board. The battery BMS board is safer in kind, intelligently balanced, and temperature controlled, making your battery safe and stable.
Battery BMS Board Parameter:
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Over Charge Protection
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Balance voltage
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Overcharge detection voltage
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4.25±0.05V | Balance Detection voltage | 4.18V |
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Overcharge detection delay time
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1s | Balance release detection voltage | 4.18V |
| Overcharge release voltage | 4.154±0.05V | Balance current | 30±5mA |
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Over-Discharge Protection
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Overcurrent Protection | ||
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Over-discharge detection voltage
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2.7±0.01V
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Overcurrent protection current | - |
| Over-discharge detection delay time |
IMS
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Overcurrent detection delay time | 1s |
| Over-discharge release voltage |
3.0±0.1V
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Release condition
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Cut short load |
| Short cycle protection | Temp. Protection | ||
| Detection condition | Out load short cycles | Charge protection Temp. | -5-50°C |
| Detection delay time | 300±30 | Discharge protection Temp. | -20-70°C |
| Release condition | Cut load | NTC thermal sensor | |
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Self-consumption
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Working Temp.
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| Current consumption in normal operation | <100uA | Temperature. range | -40/80℃ |
| Sleep current(over-discharge) | ≤20uA | ||
| Specification | MOS Withstand Voltage | Model | Size/mm | Weight/g |
| NCM 21S72V30A Common port with balance | 100V | 25A | 125*62*12 | 1800g |
| NCM 21S72V35A Common port with balance | 100V | 25A | 125*62*12 | 185g |
| NCM 21S72V45A Common port with balance | 100V | 25A | 125*62*17 |
190g
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| NCM 21S72V50A Common port with balance |
100V
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25A | 125*62*17 | 195g |
| NCM 21S72V60A Common port with balance | 100V | 25A | 125*62*17 | 200g |
| NCM 21S72V70A Common port with balance | 100V | 25A | 125*62*17 | 210g |
| NCM 21S72V100A Common port with balance | 100V | 25B | 176*68*17 | 380g |
| NCM 21S72V120A Common port with balance | 100V | 25B | 176*68*17 |
390g
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| NCM 21S72V140A Common port with balance | 100V | 25B | 176*68*17 | 410g |
| NCM 21S72V200A Common port with balance | 100V | 25B | 176*68*17 | 430g |
Battery BMS Board FAQ:
1. What are the standard ports and separate ports? what is the difference?
We take 13S48V16A BMS as an example, joint port 16A means your charge cathode and discharge cathode are connected in the same point end(our P-), charge cathode and discharge cathode are used in the common connection port, so the charge current and discharge current are the same 16A. while the separate port is separately connected by charge cathode (C-) and discharge cathode (P-), so the charge current and discharge current are different, discharge current 16A, charge current 8A.
2. What is the balance function?
The working principle and function are as followings when your one cell voltage is up to alarm voltage(Li-ion up to 4.18V, Life Po4 up to (3.6V), then the cell Balance starts to work, balance resistance starts discharge with 35ma(when balance discharge starts to work, BMS will start a little heat up, which is the normal reflection), the cell is in both charging and discharging status, and others which are not reached to alarm voltage(Li-ion 4.18V, Life Po43.6V)are only in charging status, no discharging, when the fast cell voltage is reached to alarm voltage (Li-ion 4.25V, Life PO4 3.75V)BMS starts off power protection, all the other cells are all in the top of charging, this process will enable your battery charging in balance current, and your battery voltage are in balance status, but when your cell voltage difference are in a big range, then the balance can not be functioning.
3. The relationship between Battery capacity and BMS current?
There is no direct relationship between Battery capacity and BMS current, big capacity doesn`t mean a big battery but relies on continued current, that is to say, if your engine is powerful, you should choose a high current of BMS, it does not rely on battery capacity.
Contact Person: Mrs. Nancy Ouyang
Tel: +86-15889650159
