12.8V 9Ah Smart BMS Bluetooth LiFePO4 Battery Pack
E-Bicycle Battery with Smart BMS Deep Cycle Technology
This 12.8V 9Ah lithium battery pack features advanced Bluetooth BMS technology for real-time monitoring and comprehensive protection systems.
Understanding Lithium Battery Technology
- Utilizes lithium metal or lithium alloy as electrode materials with non-aqueous electrolyte solutions
- Two main categories: lithium metal batteries and lithium ion batteries
- Lithium-ion batteries are rechargeable and do not contain metallic lithium
Bluetooth BMS Advantages
The integrated Bluetooth BMS provides comprehensive protection and monitoring capabilities through a dedicated mobile application:
- Over-charge protection
- Over-voltage protection
- Over-current protection
- Short circuit protection
- Cell balancing function
- Over-temperature protection
Key Features
Advanced Cell Technology
Lithium iron phosphate chemistry for superior safety and thousands of cycles
Comprehensive Protection
Automatic safeguards for over-charge, discharge, current, and temperature
Maintenance-Free
No regular maintenance required with internal cell balancing
Lightweight Design
Approximately 40-50% lighter than comparable lead-acid batteries
Wide Temperature Range
Operational from -20°C to 60°C
Expansion Capability
Supports series applications up to 51.2V and parallel configurations
Technical Specifications
Electrical Characteristics
| Parameter |
Specification |
| Nominal Voltage |
12.8V |
| Nominal Capacity |
9Ah @ 0.2C |
| Energy |
76.8Wh |
| Internal Resistance |
≤70mΩ |
| Cycle Life |
2000 Cycles @ 0.2C Charging/Discharging (Until 70% Capacity) |
| Self Discharge |
3.5% per month at 25°C |
Standard Charging
| Parameter |
Specification |
| Max. Charging Voltage |
14.0-14.6V |
| Charging Mode |
Constant current charging to 14.6V at 0°C-45°C |
| Charging Current |
1.2A |
| Max. Charging Current |
4.5A |
Standard Discharging
| Parameter |
Specification |
| Discharging Current |
1.2A / 9A |
| Max. Pulse Current |
20A (<3S) |
| Discharging Cut-off Voltage |
10V |
Operating Conditions
| Parameter |
Specification |
| Charge Temperature |
0°C to 45°C (32°F to 113°F) @ 60±25% Relative Humidity |
| Discharge Temperature |
-20°C to 60°C (-4°F to 140°F) @ 60±25% Relative Humidity |
| Storage Temperature |
0°C to 45°C (32°F to 113°F) @ 60±25% Relative Humidity |
| Water/Dust Resistance |
IP55 |
Structure
| Component |
Specification |
| Cell & Format |
IFR32700 N60, 4S2P |
| Casing |
Plastic |
Battery Cell Options
Customize your battery pack with preferred cell technology:
- 32700 or 18650 form factors
- LiFePO4 or NCM chemistry
BMS Functionality
Performance Characteristics
Internal Pack Structure
Applications
Ideal for: E-bicycles, RVs, solar systems, camping, energy storage, LED street lighting, golf carts, marine applications, boats, electric cars, and motorcycles.
Shipping & Delivery
USA Delivery: Sea + Express (DDP, Tax free)
ETD: 5-8 days | ETA: 25-35 days after sailing
EU Delivery: Railway + Express (DDP, Tax free)
ETD: 5-8 days | ETA: 30-45 working days after shipping
Remote areas may require additional verification. Please provide shipping address and zip code for accurate delivery information.
Company Profile
Changsha Deligreen Power Co., LTD, founded in 2010, is a "Green Energy Solution Service Provider" specializing in lithium rechargeable batteries, BMS, balancers, chargers and related products.
Our Promises:
• Real lithium capacity specifications
• 100% refund for any quality problems
• 100% replacement for shipping damage
• Lifetime technical support
Frequently Asked Questions
What is the life expectancy of a Lithium battery?
The typical estimated life of Lithium Iron Phosphate (LiFePO4) batteries is 5-15 years or 2000 to 8000 charge cycles. One charge cycle represents full charge to full discharge and back to full charge.
Where can I get the price?
Please contact us or request a quote. We provide customized pricing within 24 hours after receiving your product specifications including voltage, capacity, and application requirements.
How can you guarantee your quality?
We typically provide samples for confirmation before production. All orders are manufactured exactly to specifications. We offer 1-year warranty for small battery packs and 2-3 years for larger battery systems.
What is your term for payment?
We accept T/T, L/C, PayPal, Western Union, , Ali Express, and cash payments.
What kind of certificates do you have?
We provide CE, ROHS, MSD, and shipping certifications for our products.
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