This battery comes already charged, sealed, maintenance free, and ready to install.YTX4L-BS Replacement Battery for Centennial YTX4L-BS With 12V 1Amp Charger AGM and GEL batteries are lead-acid and of the same battery chemistry.
This battery comes already charged, sealed, maintenance free, and ready to install. This YTX7A-BS is a sealed lead-acid SLA absorbed glass mat AGM rechargeable battery..