Description
1. Product Description
BMS Product feature:
About the battery BMS/PCB/PCM Function: Separate Version : separate port for charge/discharge We can customize any PCB from 1S to 35S lithium batteries with different current. If you feel that this product does not meet your requirements, you can consult our staff, you can recommend or customize the lithium battery protection board you want. |
- Description of application effect
sightseeing vehicle,electric tricycle,low speed ev,emergrncy ups,solar street light,RV&home energy storage……
About your products,just tell us the relative voltage/cells/current A or equipment etc,we will help to recommend the most suitable products for you.
| Mode | LWS-7S25A-239 (7S)Li-ion |
| PCM Size | L65*W60*T8 mm |
| battery series | 4S-7S Available |
| working current | 25A Available |
| Application | LED lights, Emergency lights, Digital Equipment, etc |
| Sample | available |
2.The cable starts from the thin black one connecting B-, the second red wire connects the positive pole of the first string of batteries, and the next string is connected in turn to positive pole of the battery,B-,B1,B2……B7; then insert the cable into the BMS;
(The maximum number of strings is 4-7 strings, the example picture is 7 strings)(Please weld the wires in order and avoid pseudo solder joints.)
3. Connect Charger C-/Load P- with BMS C-/P- (Use larger size wires) 4. Connect Positive Pole: Charger C+/Load P+ with Battery Pack B+ (Use larger size wires) .
| Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | ||||
| PCM Specifications For 25.9V(7S) Li-ion Battery Packs | ||||
| Model: LWS-7S25A-239 (7S)Li-ion | ||||
| No. | Test item | Criterion | ||
| 1 | Voltage | Charging voltage | DC: 29.4V CC/CV | |
| Balance voltage for single cell | ||||
| 2 | Current | Balance current for single cell | ||
| Current consumption | ≤60μA | |||
| Max continuous charging current | 5A | |||
| Max plus Discharging current | 25A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 4.25±0.025V | |
| Over charge detection delay time | 0.7S-1.3S | |||
| Over charge release voltage for single cell | 4.15±0.025V | |||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.7±0.08V | |
| Over discharge detection delay time | 0.7S-1.3S | |||
| Over discharge release voltage for single cell | 3.0±0.08V | |||
| 5 | Over current protection | Over current detection voltage | 0.1V | |
| Over current detection current | 80±20A | |||
| Detection delay time | 5mS-15mS | |||
| Release condition | Cut load | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-500us | |||
| Release condition | Cut load | |||
| 7 | Resistance | Protection circuitry(MOSFET) | ≤20mΩ | |
| 10 | Temperature | Operation Temperature Range | -40~+85ºC | |
| Storage Temperature Range | -40~+125ºC | |||
2. Company Information
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Li-ion Battery Bodyguard BMS is used for Lithium ion /LiFePo4/LTO battery pack. We can design it for various lithium batteries like LiFepo4, LiMn2O4, and Li-polymer etc. The main functions : over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection etc. According to the customer request we can develop PCM in different sizes and structures. BMS manufactured by high quality Mos and IC imported .Keep your battery long cycle serivce life time. |
3. FAQ
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Q: How many Ampere protection circuit boards should choose? A: It depends on your load power such as electric motor power please contact the sales or technical support before buying. Q: What is the distinction between same port wiring and different port wiring? A: The cathode of charger and load is different for different port wiring , the cathode of charger and load is same for same port wiring and the charging current is equal to the discharge current. Q: What is the distinction between balance and unbalance function? A: Equilibrium function is that high voltage cells will be discharged with resistor, waiting for the low voltage cells , to achieve the each cell voltage is consistent , to improve the battery performance for the whole group. Q: Do you have Minimum Order Requirement (MOQ)? A: No, We don’t have MOQ, Different customer have different requirement ,We can provide various capacity and size is per your requirements,Also ODM / OEM is welcome. Q: What is your term of payment? A: PayPal, T/T, |
4. Li-ion Battery BMS Application
| Applied to Solar treet light, Medical equipment,Electric tools, Electric scooters,
Motorcycles, Electric Motorcycles, Electric Tricycles, and electric vehicles and so on. |
Which Battery BMS for which Application?
Just tell us the relative voltage/ cells/ current A or equipment information etc,
We will be confident to choose the most suitbable BMS to meet your requirements.
Any further questions, Welcome to contact our sales person by sending inquiry .
Your satisfaction is our pleasure. Let’s Join hands for mutual Benefits!