I have owned a Excide Orbital now for some 5 yrs now with no issues.. but she's just getting old and tired... Anyway to get those older 6 pack type Excides to rejuvinate themselves? I thought about adding some battery acid but not all of these use that...My battery tops can be removed and serviced I recon.. Just not quite sure how it's made and what's in it.. I know it's wrapped gel packs inside the battery.. So do they use battery acid around them or water? Inquiring minds need to know... Any help would sure be appreciated.. That or a name of a good battery place that sells them....