AA Battery Pack

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Old 04-23-14, 09:01 AM
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Question AA Battery Pack

I have a new gas barbeque that contains a 8 AA battery pack to power the lights behind the dials. On first use, the lights went out after a few minutes. When I inspected the battery pack the batteries were blistered. The pack was not hot and the plastic pack did not melt. What could be the cause? See pic
 
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Old 04-23-14, 09:03 AM
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I would check for a short. This might cause the batteries to dump their charge quickly and get hot.
 
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Old 04-23-14, 09:42 AM
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That's from radiant heat. The pack was mounted too close to the grill barrel and the heat coming off it caused the labels to split. I'd also check their associated wiring, connections, etc, because there's a good chance that's melted too. Did you assemble it or did you buy it assembled?
 
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Old 04-23-14, 09:54 AM
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I was thinking a missing heat shield as well. With the grill in operation, how much radiant heat is the pack exposed to?
 
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Old 04-23-14, 10:24 AM
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AA Battery Pack

I am leaning toward the electrical short. Even after 15 minutes of all burners on high there is no appreciable increase in ambient temperature in compartment that houses the battery pack.
Thanks for all of your quick responses.
 
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Old 04-23-14, 11:10 AM
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Except if it were a short the batteries would have been scorching hot. You said they weren't.
 
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Old 04-23-14, 11:27 AM
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I get it, they may have cooled by the time I found them.
 
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Old 04-23-14, 03:53 PM
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The only thing I don't know is if alkaline batteries can discharge fast enough to get that hot even with a short. NiMH can get warm and Lithium can quickly get extremely hot but I've never noticed alkalines heating much.
 
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