Battery was dead after jump lights work but won’t crank

Asked by kkdufseth Jan 14, 2020 at 01:14 PM about the 2007 Subaru Outback 2.5 XT Wagon AWD

Question type: Maintenance & Repair

Car was completely dead. Jump gave  
me lights but won’t crank - I hear a
light clicking sound sometimes when
I try to crank it

2 Answers

48,050

Weak cranker! Seriously. Charge the jumper and/or clean the battery connections. I keep two jumpers in rotation, letting them sit on a started Subaru awhile to fully recharge. If battery won't hold a charge after running awhile on the highway you need a new one. But before buying one just check the voltage at idle. If under 13.5v your old alternator has a bad internal voltage regulator (common), and needs to be replaced. Used ones or rebuilds are cheap. Ern TSG/B

48,050

I guess your having trouble understanding my English. I use the Subaru running ALTERNATORS to charge the jumpers. Do you really think I run around with jumper cables on my Subies??

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