12V 20Ah Sodium ion Battery
PRODUCT INTRODUCTION

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
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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Advanced Battery Management: Utilizes a specialized balancing board designed for sodium chemistry with up to 2A balance current, ensuring optimal performance and longevity.
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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.
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Eco-Friendly & Customizable: Free from harmful heavy metals, complying with EU REACH and ROHS standards. Offers flexibility for customization in color, power, dimensions, etc.

PRODUCT SPECIFICATIONS
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Electrical Characteristics
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Model number
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CFS-NA1220
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Nominal Voltage
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12.4 V
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Nominal capacity
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20 Ah
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Energy
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248 Wh
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Internal Resistance
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≤ 3mΩ
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Cycle life
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≥3000 cycles @ 60%DOD
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Months Self Discharge
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<3%
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Efficiency of Charge
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100% @0.5C
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Efficiency of Discharge
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96~99% @1C
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Standard Charge |
Charge Cut-off Voltage
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15.8V ±0.2
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Charge Mode
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0.2C to 15.8V, then 15.8V,charge current to 0.02C (CC/CV)
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Standard Charge Current
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0.2C
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Max. Charge Current
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3C
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Standard Discharge |
Continuous Current
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1C
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Max. Pulse Current
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10C
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Discharge Cut-off Voltage
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6V
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Environmental |
Charge Temperature
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-10°C~45°C @60±25% Relative Humidity
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Discharge Temperature
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-50°C~90°C @60±25% Relative Humidity
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Storage Temperature
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-10℃ to 60 ℃ (32F to 104F) @60±25% Relative Humidity
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Water Dust Resistance
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IP67
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Mechanical |
Plastic Case
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ABS
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Dimensions (mm)
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181*77*170mm
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Weight
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3.3Kg
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Terminal
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M8 Terminals for Starter
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Function
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Support Customization
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Color
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Black
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