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12V 20Ah Sodium ion Battery
Start Battery

12V 20Ah Sodium ion Battery

The CFS-NA1220 is a advanced 12.4V 20Ah sodium-ion battery designed for reliable starting of small cars up to 1.5L and auxiliary power applications. It excels in extreme cold, starting engines down to -40°C, and offers a long life of over 3000 cycles. With a high pulse current of 10C and a lightweight ABS construction (only 3.3kg), it's a superior, maintenance-free replacement for lead-acid batteries. It features a robust IP67 rating, enhanced safety, and supports customization to meet specific requirements.

  • Cell Type Sodium-ion (Na-ion)
  • Nominal Voltage 12.4V
  • Rated Capacity 20Ah
  • Nominal Energy 248Wh
  • Cycle Life ≥3,000 Cycles @80%DOD 25℃ (0.5C/0.5C)
  • Protection Class IP67
  • Warranty 5Years
  • Dimensions (L*W*H) 181*77*170mm
  • Weight 3.3kg

PRODUCT INTRODUCTION

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Introducing the CFS-NA1220, a high-performance 12.4V 20Ah sodium-ion battery ideal for starting small cars (up to 1.5L) and providing UPS backup power. This battery boasts exceptional cold cranking performance, capable of starting engines even at temperatures as low as -50°C. It is significantly lighter (3.3kg) and offers a much longer service life (≥3000 cycles @ 60% DOD) than traditional lead-acid batteries. Built with safe NaCR32140-ME10 cells in a 2P4S configuration and an IP67-rated ABS case, it ensures durability and reliability. Key features include high discharge rates (max 10C pulse), excellent storage capability, and a wide operating temperature range. Customization options are available.

FEATURES


  1. Exceptional Cold Weather Performance: Engineered for extreme environments, it delivers reliable engine starts down to -40°C, maintaining 75% of its rated capacity at this temperature.

  2. High Power Output: Supports high pulse discharge currents up to 10C (200A), providing ample power for cold cranking applications and sustained discharges up to 20A for accessories.

  3. Enhanced Safety Profile: Constructed with sodium-ion cells offering a high thermal runaway threshold (200-300°C), superior to LiFePO4. Includes a built-in 400A fuse for short circuit protection.

  4. Robust & Vibration-Resistant Construction: Features an ABS plastic case, internal potting sealant, shock-absorbing foam, and fiberglass insulation for superior durability and IP67 water/dust resistance.

  5. Long Service Life: Offers an extended lifespan with a cycle life of ≥3000 cycles at 60% depth of discharge (DOD) and a design life of up to 12 years.

  6. Superior Storage Capability: Can be stored for up to 36 months with minimal self-discharge (<3% per month) and allows storage even at 0V for short periods without damage, simplifying maintenance.

  7. Lightweight Design: Weighs only 3.3kg, approximately 40-50% less than a comparable lead-acid battery, due to the high energy density (110-120 Wh/kg) of sodium-ion technology.

  8. Advanced Battery Management: Utilizes a specialized balancing board designed for sodium chemistry with up to 2A balance current, ensuring optimal performance and longevity.

  9. Wide Operating Temperature Range: Can be charged from -10°C to 45°C and discharged across an impressive range from -50°C to 70°C, suitable for diverse climates.

  10. Eco-Friendly & Customizable: Free from harmful heavy metals, complying with EU REACH and ROHS standards. Offers flexibility for customization in color, power, dimensions, etc.

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PRODUCT SPECIFICATIONS


Electrical Characteristics
Model number
CFS-NA1220
Nominal Voltage
12.4 V
Nominal capacity
20 Ah
Energy
248 Wh
Internal Resistance
≤ 3mΩ
Cycle life
≥3000 cycles @ 60%DOD
Months Self Discharge
<3%
Efficiency of Charge
100% @0.5C
Efficiency of Discharge
96~99% @1C



Standard Charge
Charge Cut-off Voltage
15.8V ±0.2
Charge Mode
0.2C to 15.8V, then 15.8V,charge current to 0.02C (CC/CV)
Standard Charge Current
0.2C
Max. Charge Current
3C


Standard Discharge
Continuous Current
1C
Max. Pulse Current
10C
Discharge Cut-off Voltage
6V


Environmental
Charge Temperature
-10°C~45°C @60±25% Relative Humidity
Discharge Temperature
-50°C~90°C @60±25% Relative Humidity
Storage Temperature
-10℃ to 60 ℃ (32F to 104F) @60±25% Relative Humidity
Water Dust Resistance
IP67




Mechanical
Plastic Case
ABS
Dimensions (mm)
181*77*170mm
Weight
3.3Kg 
Terminal
M8 Terminals for Starter
Function
Support Customization
Color
Black


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