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Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups

Brand Name: China
Model Number: RESKY-1250
MOQ: 10pcs
Price: Negotiable
Packaging Details: Paper box
Payment Terms: T/T,Western Union
Detail Information
Place of Origin:
China
Certification:
CE, RoHS, MSDS, Un38.3
Rated Capacity:
50ah
Standard Voltage:
12V
Electrolyte:
Li-ion
Cells:
21700 5000mAh Cells
Structure:
3s10p
Motor Power:
350W/500W
Charging Cut-off Voltage:
12.6V
Charging Current:
10A
Warranty:
12months
HS Code:
8507600090
Supply Ability:
500pcs/day
Highlight:

18650 Li-Ion Battery Pack

,

21700 Li-Ion Battery Pack

,

12.6V Li-Ion Battery Pack

Product Description
Product Description  
 

Storage Power Ups Battery 12v/24v 50Ah Rechargeable 21700 18650 Li-Ion Battery Pack

 

Specification:  
Product name 12V 50Ah
Model RSK-1250
Rated Capacity 50Ah
Nominal Voltage 11.1V
Over discharge protection voltage 9V±0.05V   
Over charge protection voltage 12.6V±0.05V   
AC Impedance New Cell Max.(mΩ) ≤100 mΩ
Maximum Continuous Charge Current ≤10A adjustment
Maximum Continuous Discharge Current ≤15A adjustment
Maximum Pulse discharge current ≤30A adjustment
Operation Temperature Range Charge: 0~45°C,Discharge: -20~60°C
Storage Temperature Range Less than 1 year: -20~25°C
Less than 3 months: -20~40°C
Storage Temperature Range Less than 30 Days: -25°C~45°C
Less than 90 Days: -25°C~30°C
Weight Approx 2.8kg
Cycle Characteristic 500times
 

Main features:

 

1. High Energy Density

 

21700 Cell Technology: Cylindrical cells (21mm × 70mm) offer 20–30% higher energy density than 18650 cells, storing more energy in a compact, lightweight design.

 

Lightweight: Weighs ~2–3 kg, improving portability and reducing load in mobile applications.

 

2. High Capacity

 

50Ah Rating: Provides 600Wh of energy storage, suitable for powering devices for extended periods (e.g., camping fridges, RV systems, or trolling motors).

 

3. Long Cycle Life

 

Durability: Typically offers 1000–2000 charge cycles (80% capacity retention after 1000 cycles), outlasting lead-acid batteries (200–500 cycles).

 

4. Fast Charging

 

Rapid Recharge: Supports high charging currents (e.g., 10–15A), achieving 0–80% charge in 2–3 hours (full charge in 4–6 hours with a compatible charger).

 

5. Advanced Battery Management System (BMS)

 

Safety Features: Prevents overcharging, over-discharging, short circuits, and thermal runaway.

 

Cell Balancing: Ensures uniform charging across cells, maximizing capacity and lifespan.

 

Thermal Regulation: Maintains optimal temperatures (e.g., -20°C to 60°C) for safe operation.

 

6. Deep Discharge Tolerance

 

Low Voltage Cutoff: Safely discharges to 10.5–11V without damage, unlike lead-acid batteries (which require 50% DoD to avoid sulfation).

 

7. High Discharge Rate

 

Peak Power Output: Delivers consistent 12V under heavy loads (e.g., 100–200A for short bursts), ideal for starting motors or inverters.

 

8. Maintenance-Free

 

No Watering: Eliminates the need for electrolyte checks or maintenance, unlike lead-acid batteries.

 

9. Wide Temperature Range

 

Operating Temperatures: Functions efficiently in moderate climates (-10°C to 50°C), though extreme cold may reduce capacity temporarily.

 

10. Eco-Friendly

 

Recyclability: Lithium-ion batteries are more sustainable than lead-acid alternatives.

 

Low Self-Discharge: Loses <5% of charge per month when idle, ideal for seasonal use.

 

11. Versatile Applications

 

RVs & Marine: Powers lighting, fridges, trolling motors, or navigation systems.

 

Solar Storage: Stores energy from solar panels for off-grid use.

 

Portable Power Stations: Provides backup power for tools, appliances, or electronics.

 

Pictures:

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 0Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 1Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 2

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 3Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 4

 

 

 

 

 


 

 

Products Details

Home > Products >
Electric Bike Battery
>
Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups

Brand Name: China
Model Number: RESKY-1250
MOQ: 10pcs
Price: Negotiable
Packaging Details: Paper box
Payment Terms: T/T,Western Union
Detail Information
Place of Origin:
China
Brand Name:
China
Certification:
CE, RoHS, MSDS, Un38.3
Model Number:
RESKY-1250
Rated Capacity:
50ah
Standard Voltage:
12V
Electrolyte:
Li-ion
Cells:
21700 5000mAh Cells
Structure:
3s10p
Motor Power:
350W/500W
Charging Cut-off Voltage:
12.6V
Charging Current:
10A
Warranty:
12months
HS Code:
8507600090
Minimum Order Quantity:
10pcs
Price:
Negotiable
Packaging Details:
Paper box
Delivery Time:
10-15days
Payment Terms:
T/T,Western Union
Supply Ability:
500pcs/day
Highlight:

18650 Li-Ion Battery Pack

,

21700 Li-Ion Battery Pack

,

12.6V Li-Ion Battery Pack

Product Description
Product Description  
 

Storage Power Ups Battery 12v/24v 50Ah Rechargeable 21700 18650 Li-Ion Battery Pack

 

Specification:  
Product name 12V 50Ah
Model RSK-1250
Rated Capacity 50Ah
Nominal Voltage 11.1V
Over discharge protection voltage 9V±0.05V   
Over charge protection voltage 12.6V±0.05V   
AC Impedance New Cell Max.(mΩ) ≤100 mΩ
Maximum Continuous Charge Current ≤10A adjustment
Maximum Continuous Discharge Current ≤15A adjustment
Maximum Pulse discharge current ≤30A adjustment
Operation Temperature Range Charge: 0~45°C,Discharge: -20~60°C
Storage Temperature Range Less than 1 year: -20~25°C
Less than 3 months: -20~40°C
Storage Temperature Range Less than 30 Days: -25°C~45°C
Less than 90 Days: -25°C~30°C
Weight Approx 2.8kg
Cycle Characteristic 500times
 

Main features:

 

1. High Energy Density

 

21700 Cell Technology: Cylindrical cells (21mm × 70mm) offer 20–30% higher energy density than 18650 cells, storing more energy in a compact, lightweight design.

 

Lightweight: Weighs ~2–3 kg, improving portability and reducing load in mobile applications.

 

2. High Capacity

 

50Ah Rating: Provides 600Wh of energy storage, suitable for powering devices for extended periods (e.g., camping fridges, RV systems, or trolling motors).

 

3. Long Cycle Life

 

Durability: Typically offers 1000–2000 charge cycles (80% capacity retention after 1000 cycles), outlasting lead-acid batteries (200–500 cycles).

 

4. Fast Charging

 

Rapid Recharge: Supports high charging currents (e.g., 10–15A), achieving 0–80% charge in 2–3 hours (full charge in 4–6 hours with a compatible charger).

 

5. Advanced Battery Management System (BMS)

 

Safety Features: Prevents overcharging, over-discharging, short circuits, and thermal runaway.

 

Cell Balancing: Ensures uniform charging across cells, maximizing capacity and lifespan.

 

Thermal Regulation: Maintains optimal temperatures (e.g., -20°C to 60°C) for safe operation.

 

6. Deep Discharge Tolerance

 

Low Voltage Cutoff: Safely discharges to 10.5–11V without damage, unlike lead-acid batteries (which require 50% DoD to avoid sulfation).

 

7. High Discharge Rate

 

Peak Power Output: Delivers consistent 12V under heavy loads (e.g., 100–200A for short bursts), ideal for starting motors or inverters.

 

8. Maintenance-Free

 

No Watering: Eliminates the need for electrolyte checks or maintenance, unlike lead-acid batteries.

 

9. Wide Temperature Range

 

Operating Temperatures: Functions efficiently in moderate climates (-10°C to 50°C), though extreme cold may reduce capacity temporarily.

 

10. Eco-Friendly

 

Recyclability: Lithium-ion batteries are more sustainable than lead-acid alternatives.

 

Low Self-Discharge: Loses <5% of charge per month when idle, ideal for seasonal use.

 

11. Versatile Applications

 

RVs & Marine: Powers lighting, fridges, trolling motors, or navigation systems.

 

Solar Storage: Stores energy from solar panels for off-grid use.

 

Portable Power Stations: Provides backup power for tools, appliances, or electronics.

 

Pictures:

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 0Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 1Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 2

Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 3Rechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups 4