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50.4V 20Ah Lithium Ion Battery Pack with BMS 50A Discharge

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50.4V 20Ah Lithium Ion Battery Pack with BMS 50A Discharge

Brand Name : OiD

Model Number : OiD20Ah-50.4

Certification : GB/T 36276-2018

Place of Origin : China

MOQ : 100pcs

Price : $0.5 ~ $100.0 / pcs

Delivery Time : 3 ~ 7 days for storage

Payment Terms : TT,L/C,Western Union

Name : 20Ah Battery Pack

Battery Type : 50.4V 20Ah Rechargeable

ODM : Free custom design for packs

Cathode : NMC/NCA

Cycle Life : 300+ cycles

Operating Temperature : -20°C~60°C

Safety : Support BMS

Charging/ Discharging : 10A/50A

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OiD20Ah-50.4 50.4V 20Ah Lithium Ion Battery Pack 50A 300Cycle

Product Name

Lithium-Ion Battery Pack (Li-ion)

Advantages

High Safety: Stable chemistry with no risk of explosion.
Long Cycle Life: Up to 300+ cycles at 80%DOD.
Wide Temperature Adaptability: Operates from -20°C to 60°C.
Eco-Friendly: Lead-free and recyclable design.
Customizable: Modular configurations for solar, home energy storage, and industrial systems.

Specifications

Parameter	Value	Unit	Comments
Nominal Voltage	50.4V	DC	Non-parallel/series connection allowed.
Rated Capacity	20Ah	@0.5C	Based on 14S4P cell configuration (IFR32700-5A 3C).
Max Charge Current	10A (25°C±2)	@Constant Current (CC)	Up to 58.8V (constant voltage phase).
Max Discharge Current	50A (0°C–45°C)	@Constant Current (CC)	Min discharge voltage: 2.7V/cell.
Terminal Configuration	Red UL3135-12AWG (+), Black UL3135-12AWG (-)	Connector Type	For high-current applications.
AC Impedance	≤160mΩ	@1kHz	Measured with digital impedance analyzer.
Weight	~4.5kg		Including enclosure and connectors.
Dimensions	195mm(L) × 185mm(W) × 80mm(H)		Excluding wiring harness.

Cycle Life

Test Conditions	Cycle Count	Capacity Retention	Standard
0.5C Charge + 0.5C Discharge	300 cycles	≥97% @100%DOD	IEC 61434-2015 (equivalent)

Typical Discharge Profile:

Voltage Platform: Stable between 50.4V and 2.7V/cell at 0.5C discharge.
High-Rate Discharge: Voltage drops faster at 50A (e.g., 20% drop within 10 minutes).
Low-Temperature Performance: Minimal voltage sag at -20°C (-5% drop vs. 25°C).

Operating Temperature Range

Category	Range	Unit	Standard Compliance
Charge Temperature	0°C – 45°C	℃	GB/T 36276-2018
Discharge Temperature	-20°C – 60°C	℃	GB/T 36276-2018
Storage Temperature	-20°C – 45°C	℃	≤1 month (50% SOC); ≤12 months (25°C SOC)

Certifications

China National Standard: GB/T 36276-2018 (Power Storage Lithium-Ion Batteries).
Safety Compliance: Passes vibration, altitude, and high-temperature tests (per specs).

Key Features

Material: Lithium iron phosphate (LiFePO₄) ensures thermal stability.
BMS Protection: 50A fusing + multi-level over/under-voltage/current protection.
Modular Design: Flexible for solar, home energy storage, and industrial systems.

BMS Specifications

Function	Setting	Threshold	Action
Cell Overvoltage	Enable	4.25V ±0.03	Cut-off + recovery after <3 seconds.
Cell Undervoltage	Enable	2.7V ±0.1	Cut-off + recovery after <1.5 seconds.
Battery Overvoltage	Enable	58.8V	Cut-off + recovery after <1.05 seconds.
Battery Undervoltage	Enable	2.7V	Cut-off + recovery after <5 seconds.
Temperature Protection	Charge: 52°C / Discharge: 65°C	±5°C Sampling Error	Cut-off + recovery when temp returns to threshold.

Applications

Solar Power Systems
Residential Energy Storage
Electric Vehicle Auxiliary Power Units
Industrial Backup Systems
Marine/Offshore Applications

50.4V 20Ah Lithium Ion Battery Pack with BMS 50A Discharge

Usage Warnings & Precautions

❗ Avoid overcharging (>58.8V) or deep discharging (<2.7V/cell).
❗ Operate only within specified temperature ranges.
❗ Use certified chargers and avoid short circuits.
❗ Store in dry, ventilated areas (≤45°C, 60% RH).

Storage Guidelines

Short-Term: ≤1 month at 50% SOC, 25°C.
Long-Term: ≤12 months at 25°C (recharge every 6 months).
Avoid: Direct sunlight, extreme humidity, or physical impacts.

Warranty & Disclaimer

Warranty Period: 24 months from shipment or 300 cycles, whichever comes first.
Coverage: Defects caused by manufacturing errors.
Exclusions: Damage from misuse, improper storage, or operation outside specs.

Product Tags:

50.4V 20Ah Battery Pack

High Safety Custom Lithium Battery Packs

Custom Lithium Battery Packs 50A

50.4V 20Ah Lithium Ion Battery Pack with BMS 50A Discharge Images

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