Specifications
Brand Name :
China
Model Number :
RESKY-1250
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
10pcs
Price :
Negotiable
Payment Terms :
T/T,Western Union
Supply Ability :
500pcs/day
Delivery Time :
10-15days
Packaging Details :
Paper box
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
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 UpsRechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power UpsRechargeable 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 UpsRechargeable 21700 18650 Li-Ion Battery Pack 12.6V/24V 50Ah for Storage Power Ups


Send your message to this supplier
Send Now

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

Ask Latest Price
Watch Video
Brand Name :
China
Model Number :
RESKY-1250
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
10pcs
Price :
Negotiable
Contact Supplier
video
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

Shenzhen Resky Electronics Co., Ltd.

Verified Supplier
1 Years
guangdong, shenzhen
Since 2012
Business Type :
Manufacturer, Distributor/Wholesaler
Total Annual :
500000-1000000
Employee Number :
20~50
Certification Level :
Verified Supplier
Contact Supplier
Submit Requirement