Okyami YTZ12S-BS and TTZ12S 12V 11Ah battery for motorcycles and scooters

The Okyami YTZ12S-BS is a sealed maintenance-free 12V 11Ah battery for motorcycles and scooters, supplied with the acid to be added at first activation, positive terminal on the left (SX). It measures about 150x87x110 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 11 Ah
• Dimensions about 150x87x110 mm
• Polarity: positive terminal on the left (SX)
• Sealed maintenance-free technology, acid supplied
• Equivalent to TTZ12S

Compatibility

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

• BMW: HP2
• Honda: CBR 1100 99-, Forza 250 -04, Forza 250 05-07, Integra 700, Jazz 250, SH-300, Silver Wing 400, Silver Wing 600, Transalp 650, VFR 800 98-01, VFR 800 V-Tec, VT 750 Shadow, VTR 1000 F, VTR SP1/RC51 00-01, VTR SP2/RC51 02-, X 11
• Kymco: AK 550 17-20
• Yamaha: TMax 530 12-16, TMAX 560 20-21

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

Activation and fitting

• Take out the acid pack and remove the strip of caps from the battery
• Place the container on the battery's filler holes and press: the acid flows into every cell
• Leave it to rest for about an hour, then close it with the supplied cap strip, pressing it fully home
• Finish charging with a suitable charger and connect the positive first, then the negative

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 YTZ12S-BS?

About 150x87x110 mm, 12V 11Ah.

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 YTZ12S-BS and TTZ12S 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.