The Yamaha 1S4-82100-10-00 is a Powersports system that requires a 12V 4Ah SLA replacement battery. The compatible Universal Power Group replacement is the Yuasa YTX5L-BS 12V 4.0Ah Powersports Battery (YTX5L-BS), a 12V 4Ah SLA sealed lead-acid battery. This battery delivers up to 70 watts of standby power. It uses Bolt terminals, and measures 113 L x 105 H mm. This is a direct drop-in replacement for the Yamaha 1S4-82100-10-00 requiring no modification to the device.
