YTX7A-BS 12V 6AH Replaces 125cc Fiddlell125 10-'11 With 12V 1Amp Charger AGM and GEL batteries are lead-acid and of the same battery chemistry. This YTX7A-BS is a sealed lead-acid SLA absorbed glass mat AGM rechargeable battery.. This battery comes already charged, sealed, maintenance free, and ready to install.