6N4-2A-4 · 3 min read
6N4-2A-4 Battery: Dimensions, Polarity and Equivalents
Dimensions, polarity, what the name means, similar battery codes and the battery that replaces it.
6 V · 6N4-2A-4
6N4-2A-4 Gel Motorcycle Battery
6 V, 4 Ah battery with 40 A cold cranking amps, replacing the 6N4-2A-4. Sealed gel technology, maintenance-free.
- 6 V · 4 Ah
- 40 A CCA
€12.30 VAT included · Satkit price checked on 7 October 2026
Where to buyfrom €12.30
Prices incl. VAT checked on 7 October 2026; they may change.
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Maintenance-freeSealed: no topping up required
Specifications
- Equivalent to
- 6N4-2A-4
- Voltage
- 6 V
- Capacity
- 4 Ah
- Cold cranking amps (CCA)
- 40 A at −18 °C
- Dimensions
- 71 × 71 × 94 mm
- Technology
- Sealed gel, maintenance-free
- Weight
- 0.8 kg
About this battery
Sealed battery for the space used by the 6N4-2A-4: it never needs topping up and has no vent tube.
The original 6N4-2A-4 is a conventional flooded battery. A sealed battery replaces it without the need for maintenance, provided the motorcycle’s voltage regulator / rectifier charges between 14.0 and 14.8 V (measure at the terminals with the engine running at 3000–4000 rpm). For older motorcycles that charge below this range, stick with a conventional battery.
Use a smart motorcycle battery charger: the recommended current is around 0.4 A (capacity divided by 10), and never more than 3 A.
Dimensions, terminal layout and similar battery codes: 6N4-2A-4 battery part number page.
Related guide
Buying guide · The basics · 16 min read
How to choose a motorcycle battery: code, dimensions and type
To get it right, you need four details: the battery part number, dimensions, which side the positive terminal is on, and cold cranking amps and capacity that match or exceed the original. Here’s how to find each one, which battery type suits your motorcycle, and how to look after it so it lasts.