Can't say. I have 19 months & 40,000+ miles on mine and no issues with the battery or alternator. BUT, I have heard anecdotally that others have had battery issues (such as outright battery failures) with theirs. Battery checks are usually free at O'Reilly's. Take it somewhere where it can be tested. At least Mopar will prorate your battery under warranty if it is bad (unless they claim it was the winching that caused it to fail). Still it is cheaper to replace the battery than the alternator anyday.
2007 Rubicon, Graystone, Auto, Dual, Power, Tow,GENTEX autodim mirror,COOL TECH antenna mount&exhaust,CIBIE,HELLA TPMS,AEM CAI, Fuel Door, Grab Handles,Tuffy,Thule,Olympic,HESCO Supercharger, HID, RR XHD FB w/stinger,DRAKE hoodlatch with locks
1972 C104 Commando - Bone stock