| Overcharge Protection: | Yes |
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| Ovediscahrge Protection: | Yes |
| Over Current Protection: | Yes |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier
| Mode | LWS-15S50A-720 |
| PCM Size | L190W145*T25 mm |
| battery series | 15S Available |
| working current | 50Available |
| Usage(Cell Type) | Li-ion battery packs (55.5V/cell) LiFePO4 battery packs (48V/cell) |
| Application | Ebike, Solar products, etc |
| Sample | available |
LWS-15S50A-720 for LiFePO4/ Li-ion battery pack of 15 cells in series is a battery protection solution of LWS's, can support a load with very stable, in addition that the continuous current may be up to 50A .
1.Provides protection for 4 series LiFePo battery pack
2.Provides protections in charging and discharging
3.Processes the balance between cells smartly, the current of it can be set freely by external components.
4.Deals with over-current and short-circuit protection with circuit itself
| No. | Item | Symbol | Surveyor and equipment | Test criterion | Unit | |||
| Min. | Spec. | Max. | ||||||
| 4.0 | Overcharge protection | Overcharge detection voltage | VDET1 | Lithium battery protection board tester | 3.725 | 3.75 | 3.775 | V |
| Over charge detection delay time | tVDET1 | Lithium battery protection board tester | 500 | 1000 | 1500 | ms | ||
| Overcharge release voltage | VREL1 | Lithium battery protection board tester | 3.5 | 3.55 | 3.6 | V | ||
| 4.1 | Over discharge protection | Over discharge detection voltage | VDET2 | Lithium battery protection board tester | 2.24 | 2.3 | 2.36 | V |
| Over discharge detection delay time | tVDET2 | Lithium battery protection board tester | 500 | 1000 | 1500 | ms | ||
| Over discharge release voltage | VREL2 | Lithium battery protection board tester | 2.625 | 2.7 | 2.775 | V | ||
| 4.2 | Over current protection | Over current protection detection voltage | VDET3 | Lithium battery protection board tester | 0.040 | 0.050 | 0.060 | V |
| Over current protection detection current | IDP | Lithium battery protection board tester | 55 | 60 | 65 | A | ||
| Over current protection detection delay time | tVDET3 | Lithium battery protection board tester | 50 | 800 | ms | |||
| 4.3 | Short-circuit protection (5AH battery test) | Detection delay time | TSHORT | Lithium battery protection board tester | 100 | 300 | 600 | μS |
| Release condition | Multimeter | Disconnect the external short-circuit load or charge recovery | ||||||
| 4.4 | Resistance | Main circuit on-state resistance | RDS | Lithium battery protection board tester | 25 | 40 | mΩ | |
| 4.5 | Consumption current | Current consumption during normal operation | IDD | Lithium battery protection board tester | 20 | 50 | μA | |
| 4.6 | Over temperature protection | Charging over temperature protection | Toff | Thermostat | / | / | / | ºC |
| Charging over temperature protection release | Toff | Thermostat | / | / | / | ºC | ||
| Charge low temperature protection | Toff | Thermostat | / | / | / | |||
| Charge low temperature protection release | Toff | Thermostat | / | / | / | |||
| Discharge high temperature protection | Toff | Thermostat | / | / | / | ºC | ||
| Discharge high temperature protection release | Toff | Thermostat | / | / | / | ºC | ||
| 4.7 | Charging current | Continuous charge current | IC | DC power charger | / | / | 40 | A |
| Start current limiting charge when charge current over 50A | 5.5 | 6.5 | 7.5 | A | ||||
| 4.8 | Discharging current | Continuous working current | ID | Loading | / | / | 50 | A |
| 4.9 | Recommended storage conditions | Temperature range: 22ºC~28ºC Humidity range: 45%~85%RH | ||||||
| 4.10 | Recommended storage time | 3 months | ||||||
| Electric Switch, Temperature Switch, Passive Balance, Active Balance, 5V output, NTC,bluetooth UART/BT/RS485/CAN communication/LCD dispay and etc., if you need any above accessories, please must to contact our sales fisrt. All items could be customized to your requirements,if without any requests after order placed, we will produce as specification in details page. |
| Shenzhen Li-ion Battery Bodyguard Technology Co.,Ltd was founded in 2013. We provide Battery PCM &BMS for Lithium ion,LiFePo4,LTO battery pack and ODM & OEM services.Since established, we have designed more than 900 types of hardware PCM/BMS, and software BMS including HDQ/12C/SMBUS/ RS485/RS232 & Bluetooth and so on. Mainly covers battery assembly 1S-35S in series, working current up to 350A; the products arewidely used in light ,power tool, electric bicycle,medical equipment, EV application ....etc. Li-ion Battery Bodyguard Technology Co., Ltd has passed ISO 9001(2015) certification.We were also awarded High Technology Expertise (HNTE) in 2018. The spirit of "honesty, credibility first" business principle, fast delivery time, competitive price ,high-quality products & services have got us many customer's affirmation.And because of that, our products have been sold to not only Germany, France, the United States, Australia, India, South Korea, Japan but also other countries and regions. As a professional BMS designer and manufacturer, we are willing to support, help every client to open new markets and extend new business. Meet us, Meet reliablility, Meet our mutual development! |
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: who are we?
A: We are based in Guangdong, China, start from 2013.
There are total about 40 employees in our company.
Q:How can we guarantee quality?
A: Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q:.what can you buy from us?
A:Battery Pack BMS,Lifepo4/Lithium Ion PCM,Protection Circuit Board,Print Circuit Board,
Lifepo4/Lithium Ion Battery Pack.
Q:. why should you buy from us not from other suppliers?
A:The company has advanced production equipment and comfortable office environment,
employees hundreds of people. The company Has a complete, scientific quality management system,
and the importance of quality and environmental philosophy.
Q: what services can we provide?
A:Accepted Delivery Terms: FOB,EXW;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,PayPal,Western Union,Cash;
Language Spoken:English,Chinese
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.
Suppliers with verified business licenses
Audited Supplier 
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