Description:
1.Protection Circuit Module For 4S/12.8V LiFePO4 Battery Pack2.Maximal continuous Discharging current:5A
3.We have 10A-100A
BMS Specifications For 4S /12.8V LiFePO4 Battery Pack | |||
Model:OSN-4S0505-BMS | |||
No. | Test item | Criterion | |
1 | Voltage | Charging voltage | DC:14.4V 3.6V/Cell |
2 | Current | Current consumption for single cell | ≤50μA |
Maximal continuous Charging current | 5A | ||
Maximal continuous Discharging current | 5A | ||
3 | Over charge Protection | Over charge detection voltage | 3.90 0.025V |
Over charge detection delay time | 0.5—1.5S | ||
Over charge release voltage | 3.80 0.05V | ||
4 | Over discharge protection | Over discharge detection voltage | 2.300.08V |
Over discharge detection delay time | 50-150mS | ||
Over discharge release voltage | 2.700.1V | ||
5 | Over current protection | Over current detection voltage | 0.30.025V |
Over current detection current | 10 2A | ||
Detection delay time | 5ms—15mS | ||
Release condition | Cut load, Automatic Recovery | ||
6 | Short protection | Detection condition | Exterior short circuit |
Detection delay time | 200-500us | ||
Release condition | Cut load, Automatic Recovery | ||
7 | Resistance | Protection circuitry (MOSFET) | ≤60mΩ |
8 | Temperature | Operating Temperature Range | -40~ 85°C |
Storage Temperature Range | -40~ 125°C | ||
9 | Size | 50*16mm | |
MainFunctions:
Theproduct has 6 main functions: over charge, over discharge, overcurrent, short circuits, balancing and low-currentlock.
1.Function of over charge protection: once voltage of any battery inthe pack gets higher than the over charge protection point, chargecuts off to ensure all batteries work within the over chargeprotection point.
2.Function of over discharge: once voltage of any battery in the packgets lower than the over charge protection point, discharge cutsoff to ensure all batteries work beyond the over charge protectionpoint.
3.Function of over current: during the discharge process of batterypack, once discharge current gets over the set over currentprotection point, output cuts off to ensure battery pack workswithin the safe limit of current.
4.Function of short circuit protection: once battery pack’s outputport appears the condition of short circuit, it cuts off to ensurebattery group not to be damaged because of shortcircuit.
5.Function of voltage balancing: in the late charging period ofbattery pack, voltage difference that appears during the usingprocess of each battery could get balancing revised to ensurebattery pack’s capacitance.
6.Function of low-current lock: series connection of low-current lockgets reserved and low current controls on-and-off of the main highcurrent to make it safer and more convenient.
