Power the next generation of automotive energy with the Aeson Power NA-40B20L Sodium-Ion Car Battery.
Built for reliability and long service life, this maintenance-free sodium-ion battery delivers stable starting performance without acid, corrosion, or regular upkeep—ideal for modern daily-driven vehicles.

Key Features

• Sodium-Ion battery technology (lead-acid alternative)

• Maintenance-free design

• Stable and consistent starting power

• No acid leakage or corrosion risk

• Lightweight construction compared to conventional lead-acid batteries

• Suitable for daily use and start-stop driving conditions

Technical Specifications

• Model: NA-40B20L

• Battery Type: Sodium-Ion

• Universal Size: NS40

• Cold Cranking Amps (CCA): 350–450

• Charge Voltage: 14.4V – 14.8V

• Terminal Type: SAE AP

• Dimensions (L × W × H): 196 × 127 × 220 mm

Warranty Coverage

• 3-Year Warranty

• Unlimited Mileage

• Warranty subject to manufacturer terms & conditions

• Does not cover misuse, improper installation, or charging system faults

Compatibility & Replacement Guide

This battery is designed as a direct sodium-ion replacement for vehicles using:

• NS40

• Common equivalents: DIN45 / DIN50, 44B19 / 46B19
  (Always verify physical size and terminal orientation before installation.)

Why Choose Sodium-Ion Over Lead-Acid?

• No liquid acid, safer handling

• Better resistance to frequent start-stop usage

• Lower self-discharge during storage

• Reduced maintenance over long-term ownership

Q&A (For Buyer Clarity & SEO)

Q: Is this battery a direct replacement for NS40 lead-acid batteries?
A: Yes. NA-40B20L is designed to replace NS40-size lead-acid batteries with matching dimensions and terminal layout.

Q: Does sodium-ion require a special alternator or charger?
A: No. This battery operates within standard automotive charging voltage (14.4–14.8V).

Q: Is this battery suitable for daily driving?
A: Yes. It is designed for regular daily use, including urban stop-and-go conditions.

Q: Is it completely maintenance-free?
A: Yes. No water top-up, no acid handling, and no routine maintenance required.

Q: What does unlimited mileage warranty mean?
A: The warranty is time-based (3 years) and not limited by vehicle mileage, subject to warranty terms.

The Aeson Power NA-40B20L Sodium-Ion Battery offers a modern, maintenance-free alternative to traditional lead-acid batteries—combining safety, reliability, and long-term value for everyday driving.