Yamaha TT-R225 Battery
The Yamaha TT-R225 (225cc) takes a YT7B-BS battery, about 120 CCA and 6 Ah. It is a sealed agm (maintenance-free), and a lithium drop-in fits the same case.
Key takeaways
- Battery: YT7B-BS (also sold as YT7B).
- Sealed AGM (maintenance-free), around 120 CCA, 6 Ah.
- Lithium drop-in fits the same YT7B-BS case - lighter, longer-lived, needs a lithium charger.
- Covers 1999-2005.
- Chemistry (OEM)
- Sealed AGM (maintenance-free)
- Cold cranking amps (CCA)
- 120
- Capacity
- 6 Ah
- Engine
- 225cc
- Fits model years
- 1999-2005
The -BS suffix means it ships dry with an acid pack you add once - after that it is a sealed, maintenance-free AGM battery.
The Yamaha TT-R225 uses a YT7B-BS - sealed agm (maintenance-free). Around 120 CCA of cold-start current. Meeting or beating the OEM rating is fine; going under it can cause hard starts in the cold. About 6 Ah of capacity - the reserve that runs lights and electronics with the engine off.
AGM is the safe like-for-like: cheapest, tolerant of standard chargers and trickle tenders, and heavier. Lithium (LiFePO4) drop-ins in the same case size cut weight by roughly 60-70%, hold voltage better, and self-discharge far slower - but they cost more and need a lithium-aware charger, not an old lead-acid trickle charger.
Buy the battery for your Yamaha TT-R225
AGM is the safe like-for-like: cheapest, tolerant of standard chargers and trickle tenders, and heavier. Lithium (LiFePO4) drop-ins in the same case size cut weight by roughly 60-70%, hold voltage better, and self-discharge far slower - but they cost more and need a lithium-aware charger, not an old lead-acid trickle charger.
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Installing it
Disconnect the negative (-) terminal first and reconnect it last. Powersports batteries are small and light, so this is usually a 10-15 minute job with a couple of hand tools.
Frequently asked
What battery does a Yamaha TT-R225 take?
The Yamaha TT-R225 takes a YT7B-BS battery (also sold as YT7B), a sealed agm (maintenance-free) rated around 120 CCA and 6 Ah.
Is the YT7B-BS an AGM or lithium battery?
Sealed AGM (maintenance-free). The -BS suffix means it ships dry with an acid pack you add once - after that it is a sealed, maintenance-free AGM battery. You can also fit a LiFePO4 lithium drop-in in the same YT7B-BS case size for less weight and longer life - just use a lithium-aware charger.
How many cold cranking amps (CCA) does it need?
Around 120 CCA of cold-start current. Meeting or beating the OEM rating is fine; going under it can cause hard starts in the cold.
Can I put a lithium battery in a Yamaha TT-R225?
Yes. Lithium (LiFePO4) drop-ins are made in the same YT7B-BS case size, so they fit the tray and terminals. They weigh far less and last longer, but need a lithium-compatible charger rather than an old lead-acid trickle charger.
How do I change the battery on a Yamaha TT-R225?
Disconnect the negative (-) terminal first and reconnect it last. Powersports batteries are small and light, so this is usually a 10-15 minute job with a couple of hand tools.
Other motorcycles that take a YT7B-BS
See every model that uses a YT7B-BS battery →More parts for your Yamaha TT-R225
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