Basic Info.
Product Description
1. True lithum battery pack BMS factory
2. Supply OEM/ODM and custom service
3. High quality with smart balance function
4. Wholesale price
5. ISO9001/ISO14001/CE/ROHS certificates
6. Fast delivery
| Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | ||||
| PCM Specifications For 25.9V(7S) Li-ion Battery Packs | ||||
| Model: LWS-7S15A-415(7S) | ||||
| No. | Test item | Criterion | ||
| 1 | Voltage | Charging voltage | DC: 29.4V 4.2/Cell | |
| Balance voltage for single cell | ||||
| 2 | Current | Balance current for single cell | ||
| Current consumption | ≤50μA | |||
| Maximal continuous charging current | 15A | |||
| Maximal continuous discharging current | 15A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 4.25±0.025V | |
| Over charge detection delay time | 0.5S-1.5S | |||
| Over charge release voltage for single cell | 4.15±0.050V | |||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.75±0.080V | |
| Over discharge detection delay time | 50mS-150mS | |||
| Over discharge release voltage for single cell | 3.00±0.100V | |||
| 5 | Over current protection | Over current detection voltage | 100±25mV | |
| Over current detection current | 65A±10A | |||
| Detection delay time | 5ms-20ms | |||
| Release condition | Cut load | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 180-500us | |||
| Release condition | Cut load | |||
| 7 | Resistance | Protection circuitry(MOSFET) | ≤50mΩ | |
| 8 | Temperature | Operating Temperature Range | -40~+85ºC | |
| Storage Temperature Range | -40~+125ºC | |||
Our Advantages for BMS
1. Complete Function: Detect and protect the battery from: over-charge, over-dicharge,
over-current, short-circuit,
temperature detecting protection, auotmatically voltage balance function.
2. Build with high end electronic components (High End IC and MOSFET ) ,
3. Simple structure design will let it have more stable quality working performance ,
4. Flexible application ( it can be used for less series battery by leaving some connection pins at empty status ),
5. Full set of protection measures let it works well
6. Without any infulence from external unexpected accidents.
About your products, just tell us the relative voltage/ cells/ current A or equipment etc,
we will help to recomment the most suitable products for you. or we design for you!
Similar products (1~35 series)
Certifications
Company Information
We are a specialize of digital (single class), multi-cell power BMS lithium battery protection board the R & D, production, sales and service of high-tech enterprises.
Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD was founded in 2013, with 100K per month PCM/BMS production ability.
Products including multi-series lithium battery pack protection board, power lithium battery BM, balanced protection board, LTO BMS and LiFePO4 battery BMS, etc.
Varies applications including Movable power batteries, power tools battery, batteries for electric bikes, golf cart batteries, car starting power batteries, street lights and other production areas.
Products are well recognized and well regarded by customers in Europe, USA, Middle east, Africa, South East Asia countries and as well as Chinese domestic market.
Workshop
FAQ
Q: How do I judge what material my battery is ?
A: Please take a look at the battery body.if the normal voltage of your battery shows as 3.2V,the battery will be
LiFePo4.If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. you
can also ask battery manufacturer the material of battery.
Q: Can I use this protection circuit board for my battery?
A: Can use this protection circuit board, or not? There are 2 questions: How much cells in series is your battery
pack? The protection circuit board you need to buy must be same cells in series as your battery pack. What material
is your battery? Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the
protection circuit board for LiFePo4 battery , Please let us know firstly.
Q: Do we need cell balance or not?
A: The function of balance: Since battery is made of many pcs of cells in parallel and in series, the cells can't be
the same as no two people in the world is the same. So battery cells put in group with similar performance is not
consistent, which will lead to each cell voltage is not consistent as well after the completion of the charging if
without balance function.
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?
Q: How to contact for BMS?
A: Please send messages below or e-mail us and we are always glad to help you with BMS.