Motobatt MBT4BB 12V 2.5Ah 40CCA AGM Motorcycle Battery With Quadflex Technology

The MBT4BB is a sealed 12V AGM battery from Motobatt, rated at 40 cold cranking amps, built for small capacity bikes such as the Yamaha TTR50E and the fuel injected SR400. It arrives factory activated, so there is no acid to pour. Check the charge, fit it and ride.

Why riders replace a small bike battery

A tiny battery on a trail bike or a kids' bike is usually the first thing to give up after a few weeks parked in the shed. The bike clicks, then nothing. Motobatt's spec sheet shows it still holding 97% of its charge after a month on the shelf at 20°C, 91% after three months and 83% after six.

Vibration is the other killer on dirt bikes. Motobatt uses fibreglass mat separators to soak up the electrolyte and says that gives it better vibration resistance than a conventional battery.

Specifications from Motobatt

Bikes listed for this battery

• Suzuki DR-Z70, 2008 to 2009
• Yamaha TTR50E, 2006 to 2007
• Yamaha TTR90E electric start, 2003 to 2007
• Yamaha fuel injected SR400, 2015 to 2017

If your bike is not on that list, measure the old battery and check which side the terminals sit before you order. We can compare it for you.

What you get and fitting

One MBT4BB battery, already filled and sealed. Give it a top up charge with a suitable AGM charger before first use if it has been sitting on a shelf, then bolt the leads to the spade terminals, positive first on, negative last.

Warranty

This comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.

Questions we get about the MBT4BB

Is the MBT4BB ready to fit out of the box?

Yes. It comes sealed and already activated, so there is no acid to add, though a shelf stored battery wants a top up charge first.

Will it fit my SR400?

Motobatt lists it for the fuel injected SR400 from 2015 to 2017. The 1978 to 2000 SR400 takes the Motobatt MB9U instead.

Can I mount it on its side?

Motobatt rates it as sealed and non spillable, but it does not list approved mounting positions for the MBT4BB. If you want it on its side, ask us first.