Bosch M3 Premium M30MF Marine Battery 830cca

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Bosch M3 batteries are maintenance free and features expanded grid calcium technology for long service life. Bosch M series is ideal for marine use.

Bosh branded automotive and marine batteries are Mr Positive premium offering. With nearly 90 years of engineering and innovation, trust the worldwide recognised name of quality and reliability and chose Bosch for your starting power!


Voltage: 12v
CCA: 830
Width: 173mm
Length: 330mm
Height: 240mm
Reserve Capacity: 200
Terminals: Twin Marine Style
Battery Type: Flooded Calcium
Term Layout: B
Bosch Part Number: HCM31-830 B, HCM31-830

Please Note:

Image is only a reference of general Bosch S4/M4 battery range and not the final product.

Bosch Terminal Layout Key

Bosch Battery Assembly


Model # HCM31-830 B


All Bosch SM Mega Power, SM Mega Power Plus, SM Mega Power Silver batteries carry a 36 month warranty. Unless fitted in a commercial vehicle when the warranty reduces to 24 months. Bosch Starting Batteries used in Taxi’s only carry 6 month warranty.

Deep Cycle, VRLA and Marine batteries 12 Months

A warranty claim is only applicable where the battery fails as a result of a manufacturing or material fault. Misuse, damage, poor installation practices or improper maintenance do not constitute a warranty claim.

This warranty does NOT cover:

Normal wear and tear
Parts which have been subjected to deliberate abuse
Conditions resulting from abnormal wear, negligence, alterations or accidents
Incorrect fitment

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