48V 12.5Ah Li Ion Battery Pack with 20A Discharge and BMS
OiD12.5Ah-48 48V 12.5Ah 20A 500Cycle Eco-Replaceable Battery Pack
Product Name
48V 12.5Ah Li-ion Battery Pack (Eco-Friendly & Replaceable Design)
Advantages
- Eco-Friendly & Replaceable: Modular design allows easy cell replacement, reducing waste and extending lifespan.
- Long Cycle Life: 500+ cycles at 80% depth of discharge (DoD).
- High Discharge Current: 20A continuous output for power-demanding applications.
- Wide Temperature Range: Operates from -20°C to 60°C.
- Certified Safety: Integrated BMS with multi-layer protection.
Specifications
|
Parameter |
Value |
Unit |
Comments |
|
Model |
OiD12.5Ah-48 |
- |
13S5P Li-ion configuration with replaceable modules. |
|
Nominal Voltage |
48V |
DC |
13S series connection (3.7V/cell). |
|
Rated Capacity |
12.5Ah |
@0.5C |
Tested at 25±2℃, 50% SOC. |
|
Max Continuous Discharge |
20A |
@CC |
Operates within -20°C to 60°C. |
|
Max Charge Current |
2A (0°C–45°C) |
@CC/CV |
Charges to 54.6V (constant voltage phase). |
|
Terminal Configuration |
Anderson SB175 Connectors |
Connector Type |
High-current terminals for robust connections. |
|
Internal Resistance |
≤200mΩ |
@1kHz |
Ensures minimal voltage drop during high-load operation. |
|
Weight |
~3.3kg |
Lightweight and portable design. |
|
|
Dimensions |
300mm(L) × 150mm(W) × 90mm(H) |
Modular structure for easy maintenance. |
Cycle Life
|
Test Conditions |
Cycle Count |
Capacity Retention |
Standard |
|
25±2℃, 0.5C charge + 20A discharge |
500 cycles |
≥80% initial capacity |
GB/T 31484-2015 (equivalent) |
Typical Discharge Profile:
- Voltage Stability: Maintains 48V plateau at 0.5C discharge (25±2℃).
- High-Rate Discharge: Voltage drops to 35.75V within 1 hour at 20A (25±2℃).
- Low-Temperature Performance: Capacity retains ≥75% at -10℃.
Operating Temperature Range
|
Category |
Operating Range |
Unit |
Standard Compliance |
|
Charge Temperature |
0°C – 45°C |
℃ |
GB/T 31486-2015 |
|
Discharge Temperature |
-20°C – 60°C |
℃ |
GB/T 31486-2015 |
|
Storage Temperature |
-10°C – 35°C |
℃ |
≤12 months (50% SOC) |
Certifications
- China National Standards: GB/T 31486-2015 (Li-ion battery testing).
- Safety Compliance: Passes UN38.3, vibration, and thermal shock tests.
Key Features
- Replaceable Design: Individual cell modules can be replaced to reduce waste.
- Advanced BMS: Real-time monitoring of voltage, current, and temperature.
- Eco-Friendly Materials: RoHS-compliant and recyclable components.
BMS Specifications
|
Function |
Threshold |
Delay Time |
Action |
|
Overcharge Protection |
4.25V ±0.05V/cell |
<500ms |
Cut-off + auto-recovery after voltage drop. |
|
Overdischarge Protection |
2.75V ±0.1V/cell |
<1s |
Cut-off + auto-recovery after charging. |
|
Overcurrent Protection |
25A (peak) |
<200ms |
Load disconnection. |
|
Temperature Protection |
Charge: 55℃ / Discharge: 65℃ |
- |
Adjusts charge/discharge rate or cuts off. |
Applications
- Electric Scooters & Bikes
- Portable Solar Power Stations
- IoT Device Backup Systems
- Light Electric Vehicles (LEVs)
- Emergency Power Supplies
Usage Warnings & Precautions
- ❗ Use only certified chargers (54.6V CC/CV).
- ❗ Avoid deep discharging (<35.75V) or overcharging (>54.6V).
- ❗ Replace modules only with manufacturer-approved parts.
- ❗ Store in dry, ventilated areas away from flammable materials.
Storage Guidelines
- Short-Term: ≤3 months at 20–25°C, 50% SOC.
- Long-Term: ≤12 months at -10–35°C, 50% SOC (recharge every 6 months).
Warranty & Disclaimer
- Warranty: 24 months from shipment or 500 cycles (whichever occurs first).
- Coverage: Defects in materials or workmanship.
- Exclusions: Damage from unapproved modifications or improper module replacement.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.