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Yuasa B39-6 Motorcycle Battery

 In Stock

Delivery to UK Mainland
Buy now for despatch

Part Number:  B39-6

£22.99 (inc VAT)


Brand:   Yuasa
Voltage:   6V
Capacity:   7AhHelpAmpHour or Ah measures the capacity of a battery.
In simple terms, the higher the Ah the more energy the battery can store.

If you imagine a bucket of water, the bigger the bucket, the more water it can store.

For example.
A 20Ah battery can normally deliver 1 Amp for 20 hours or 2 Amps for 10 hours. At extremes the performance usually drops, for example it may not deliver 20 Amps for one hour.

1Ah = 1000mAh
Length: 129mm
Width: 52mm
Height: 129mm
EAN / Barcode: 4016987109267

BMW R26 uses B39-6 Yuasa Battery

Suitable for use with Ducati and Piaggio-Vespa


  • Part number: 007-014-003
  • Battery type number: B39-6
  • Dimensions: 129mm x 52mm x 129mm
  • Vent position: n/a
  • Capacity rating: 7Ah
  • Cold-start performance: 20DIN, 30EN
  • Maximum charging rate: 1 Amp
  • Battery type: Dry charged battery
  • Filling kit included: No
  • Electrolyte required: 38% Sulphuric Acid, specific gravity 1.28kg/litre
  • Electrolyte volume: 0.4 Litres
  • Weight (filled): 1.6kg

Replaces the following part numbers

  • B39-6
  • 3S3P
  • 007 014 003

Please note that before you can use this battery it will need to be filled with battery acid (NOT distilled water). This is not included with the battery and needs to be ordered separately.

You can add a suitable quantity of battery acid to your order using the links below. The amount of acid you need to order is shown above as “Electrolyte Volume”.

1/2 litre bottle of battery fluid
1 litre bottle of battery fluid

Please read the following notes before ordering:
  • If you order this battery without the acid to go with it we will not be able to guarantee the battery. This is because we are unable to verify the specification or quality of the acid that you use to fill it and it would not be possible for us to confirm that a subsequent battery problem had been caused by a fault in the battery.

  • For personal callers we also offer a battery filling service at our shop in Enfield, North London, where you can buy the battery and have it filled with acid FREE while you wait.

  • Please note that shipping battery acid by air or sea freight is prohibited so we can only accept orders for these products for delivery to certain areas. In general these are mainland addresses in the UK, France, Germany, Italy, Belgium, Spain, Finland, Denmark, Holland, Luxembourg, Austria and Greece. If you are unsure if your delivery address will be accepted please contact us before ordering.

This B39-6 battery also fits the following:
Make Model Make Model
AERMACCHI Chimera 250cc BSA 250 350 650 6V cc
BSA 250 6V BSA 650 6V
CZ CZ 477 TRIUMPH 350 12V 350cc
TRIUMPH 500 12V 500cc TRIUMPH 600 12V 600cc
TRIUMPH 600 650cc YUASA B39-6

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