Shenzhen Juyi Science And Trade Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 1000000pcs per day |
| Delivery Time | 3-5days |
| Packaging Details | Strong paper box +EVA Foam |
| Product Name | 5S 120A Lithium Battery BMS with Heatsink |
| Copper Thickness | 2oz |
| Application | Industrial energy storage |
| Board Thickness | 1.6mm |
| Battery Type | Li-ion/Lifepo4/Lto/SIB |
| Allowable Operating Voltage Range | 0-30V |
| Rated Discharge Currenturrent | 120A |
| Peak Starting Current | 300A |
| Used For | Lithium Battery Protection Board |
| Keywords | 5S BMS |
| Base Material | FR-4 |
| Surface Finishing | Lead-free spray tin |
| Product Size | L95xW68xT15mm |
| Weight with Package | 0.25kg |
| Brand Name | Enerkey |
| Model Number | EK-BM3R8S120A |
| Certification | ISO9001/CE/ROHS |
| Place of Origin | Shenzhen, China |
View Detail Information
Explore similar products
Enerkey 5S BMS 200A Li-ion Lipo LifePo4 Lithium Battery Protection Board With
Enerkey 200A Hardware BMS 4S Li-ion/Lto/SIB/Lifepo4 For 12V LiFePO4 18650/21700
Enerkey 12v 3s 10~80A BMS Lithium Iron Phosphate Li-ion Battery BMS For Fishing
Lithium Li Ion Battery BMS 7S 30A 30V With NTC For Battery Management System
Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 1000000pcs per day |
| Delivery Time | 3-5days | Packaging Details | Strong paper box +EVA Foam |
| Product Name | 5S 120A Lithium Battery BMS with Heatsink | Copper Thickness | 2oz |
| Application | Industrial energy storage | Board Thickness | 1.6mm |
| Battery Type | Li-ion/Lifepo4/Lto/SIB | Allowable Operating Voltage Range | 0-30V |
| Rated Discharge Currenturrent | 120A | Peak Starting Current | 300A |
| Used For | Lithium Battery Protection Board | Keywords | 5S BMS |
| Base Material | FR-4 | Surface Finishing | Lead-free spray tin |
| Product Size | L95xW68xT15mm | Weight with Package | 0.25kg |
| Brand Name | Enerkey | Model Number | EK-BM3R8S120A |
| Certification | ISO9001/CE/ROHS | Place of Origin | Shenzhen, China |
Enerkey BMS 5S 120A Military-grade MOS Lithium Battery Protection Board with Balancing for Outdoor Energy Storage
Electrical parameters
1. Voltage range
Applicable battery pack: 3S (ternary lithium 12.6V) to 8S (FeLi 33.6V)
Overcharge protection threshold: single cell 4.25V±0.05V (ternary lithium) / 3.65V±0.05V (FeLi)
Overdischarge protection threshold: single cell 2.45V±0.1V (ternary lithium) / 2.0V±0.1V (FeLi)
2. Current performance
Continuous discharge current: 120A (stable operation)
Peak current: 300A (supports 5-second pulse discharge)
Short-circuit protection response time: ≤10ms (self-recovery requires charging trigger)
3. Temperature monitoring
Built-in NTC sensor, monitoring range: -20℃~85℃ (accuracy ±1℃)
High temperature protection threshold: 70℃±5℃ (programmable adjustment)
Protection mechanism
1. Basic protection functions
Overcharge/over-discharge protection, overcurrent protection, short circuit protection, temperature protection
Balance function: passive balance, balance current 80mA-150mA (voltage difference repair)
2. Extended protection
Support lead-acid battery modification to lithium battery system (voltage parameters need to be matched)
Bluetooth communication module (customizable): real-time view of voltage, temperature, and current data
Structural design
1. Hardware configuration
Shell material: all-aluminum alloy die-casting process, surface anodizing treatment (anti-corrosion)
Heat dissipation solution: internal thermal conductive silicone + external heat sink (support natural convection/air cooling)
2. Physical specifications
Dimensions: 95×68×15mm (compact package)
Weight: ≤2000g (including shell and heat dissipation components)
Compatibility and application
1. Applicable battery types
Ternary lithium battery (3.6-4.2V/cell), lithium iron phosphate battery (3.2V/cell), lithium titanate battery (2.3V/cell), sodium ion battery (2.3V/cell)
2. Typical scenarios
Industrial equipment: AGV robots, electric forklift battery packs
Energy storage systems: outdoor power supplies, solar energy storage equipment
Vehicle modification: lead-acid batteries replaced with lithium battery packs (such as electric vehicles, RVs)
Certification and warranty
• Certification standards: RoHS, CE (in compliance with export requirements)
• Warranty period: 18 months (non-human damage)
Packing list
• Protection board body × 1
• Cable × 1
| Item type | Parameters | |||||||||
| 1 | Parameter Overview | Product Model | EK-BM3R8S120A | |||||||
| Product Size(mm) | L95*W68*T15 | |||||||||
| Product Weight(kg) | 0.25 | |||||||||
| Product Material | FR-4 / Lead-free spray tin | |||||||||
| Applicable battery type | Lifepo4 | Li-ion | Lto | SIB | ||||||
| Applicable battery string | 3S-8S | 3S-8S | 3S-8S | 3S-8S | ||||||
| Rated discharge current | 120A | 120A | 120A | 120A | ||||||
| Peak starting current | 300A | 300A | 300A | 300A | ||||||
| Item type | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | ||
| 2 | Charging protection | Overvoltage protection voltage value | 3.65V/1S | 3.50V/1S | 4.25V/1S | 4.05V/1S | 2.85V/1S | 2.75V/1S | 3.95V/1S | 3.80V/1S |
| Balanced phase difference voltage value | Trigger voltage difference 30mV / trigger time 0.5S / balance time 10S cycle | |||||||||
| Balanced voltage value | 3.45V | 3.70V | 2.50V | 3.10V | ||||||
| Overcurrent value | 120A/2S, disconnect charger to recover | |||||||||
| Low temperature value | Charge over-temperature protection 60℃/2S / Release 55℃/2S | |||||||||
| Overtemperature value | Charging low temperature protection -5℃/2S / Release 0℃/2S | |||||||||
| 3 | Discharge protection | Undervoltage protection voltage value | 2.30V/1S | 2.70V/1S | 2.75V/1S | 3.0V/1S | 1.70V/1S | 1.80V/1S | 1.50V/1S | 2.00V/1S |
| ①Overcurrent protection value | 150A/2S, disconnect load or activate charging | |||||||||
| ②Overcurrent protection value | 250A/0.5S, disconnect load or activate charging | |||||||||
| Short circuit protection value | 500A/128uS, disconnect load or charge activated | |||||||||
| Low temperature value | Discharge over-temperature protection 65℃/2S, release 60℃/2S | |||||||||
| Overtemperature value | Discharge low temperature protection -20℃/2S, release -10℃/2S | |||||||||
| 4 | Others | Standby current consumption | 25uA | |||||||
| Motherboard lock voltage | / | |||||||||
Wiring precautions:
1. Installing the protective board requires a certain amount of technical electronic knowledge.
2. When wiring, first connect the B- wire at the soldering pad position to the total negative terminal of the battery (the B- wire should be soldered to a short and thick wire) and solder the wired terminal to the battery pack first, and then insert the protective plate.
3. The connection between the battery terminal B- and the protection board terminal B- should be short and thick, otherwise it will cause the protection board to charge and discharge in advance and malfunction.
4. You need to use thick wires when wiring P+/P-. Wires that are too thin and too long will burn the board!
Q1. Why did we choose you?
* We can provide you with efficient after-sales service, with more than 10 years of strong technical support.
* Products have passed FCC, CE, ROHS and other international standards certification.
* We can provide you with factory price, Welcome you to visit our factory and production process.
Q2. What is your product range (type)?
*We mainly do battery management systems in the fields of power batteries, energy storage batteries and consumer batteries.
*Mainly used for LFP, Li-ino and LTO batteries.
Q3: How do I know which kind of material & type my battery is ?
*Please look the battery body, If the normal voltage of your battery shows 3.2V, The battery is LiFePo4.
*If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Lto battery.
Q4. Do you have minimum order requirements?
Can it be customized? What is the lead time for samples and batches?
*Our minimum order quantity is 1 piece, ODM customization is available.
* 1~3 days delivery of existing samples, 3~10 days delivery of customized samples.
Q5: What if i can't use it?
*Regular products have instructional videos, We can also support online video call guidance from engineers.
Q6. What are your terms of payment?
*We accept wire transfer and cash payment, all negotiable. Payment method :visa, mastercard, T/T, PayPal, APPLE_PAY, GOOGLE_PAY, GC_REAL_TIME_BANK_TRANSFER, RMB
Q7. How do you guarantee the quality?
* All our products are subjected to professional laboratory 100% testing, as well as repeated aging tests.
* Obtained FCC, CE, ROHS and other international standard certification.
* Provide 3 years after-sales warranty service. Free spare units for replace in 3 years.
Q8. How to choose a BMS suitable for our battery?
*Depending on the voltage and current that matches your battery, you can consult our customer service and we will provide it for you equipped with the most suitable battery management system.
Q9. How can i contact you?
*We have 7x24 hours online service, Please leave us a message online.
*You can also contact us by Email, WhatsApp, WeChat, etc(see below). We are so glad to work with you.
Company Details
Business Type:
Manufacturer
Year Established:
2015
Total Annual:
10000000-50000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Shenzhen Juyi Science And Trade Co., Ltd. and EnerKey BMS Technology Co., Ltd. is a new energy enterprise engaged in the research and development of lithium battery protection panels (intelligent BMS). EnerKey BMS specializes in the field of power solution development, has accumulated m... Shenzhen Juyi Science And Trade Co., Ltd. and EnerKey BMS Technology Co., Ltd. is a new energy enterprise engaged in the research and development of lithium battery protection panels (intelligent BMS). EnerKey BMS specializes in the field of power solution development, has accumulated m...
Get in touch with us
Leave a Message, we will call you back quickly!