Okyami YB9-B 12V 9Ah battery for motorcycles and scooters

The Okyami YB9-B is a traditional lead-acid 12V 9Ah battery for motorcycles and scooters, supplied with the acid to be added at first activation, positive terminal on the left (SX). It measures about 138x77x141 mm and replaces batteries of the same format.

Okyami is the choice for riders who want a complete battery at a very competitive price: the acid is in the box and nothing else is needed to activate it. Before ordering, always check the code printed on the battery you are replacing.

Features

• Voltage 12V
• Capacity 9 Ah
• Dimensions about 138x77x141 mm
• Polarity: positive terminal on the left (SX)
• Lead-acid technology, acid supplied

Compatibility

This battery is listed for the models below. Lists can vary by year and version, so always check the original code:

• Aprilia: RS 125 -05, RS 125 06-10, Tuono 125, Tuono 50
• Cagiva: Mito 125
• Malaguti: F18

If your model is not listed, compare the code and dimensions of the original battery with those on this page.

Activation and fitting

• Cut the tip off the acid pack and insert the spout into the battery's filler holes
• Pour the acid into every cell, keeping the same level in all of them
• Wait about an hour without the caps in a ventilated place so the acid soaks the separators well
• Close with the caps, finish charging with a suitable charger and fit the battery

How to choose the right battery

Check three things on the original battery: the code, the dimensions and the position of the positive terminal. A battery of the same capacity but with reversed polarity does not connect properly to the vehicle's cables.

Frequently asked questions

What size is the YB9-B?

About 138x77x141 mm, 12V 9Ah.

Is the acid included?

Yes, the acid is in the box and is added at first activation.

How do I check it fits my vehicle?

Compare the code printed on the original battery with YB9-B and check dimensions and polarity.

How long should I wait before using it?

About an hour after pouring in the acid, then close it and finish charging.