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slonezp

Expected life of a battery jump box

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I've had a jump box in the boat for 6 years. Charge it up once a year at the beginning of the season. It has never been used. Is it still good?

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Do you have a battery load tester?

Harbor Freight sells a good inexpensive Chicago battery load tester.

Tom

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What type of batteries are in it?

 

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https://docs.wixstatic.com/ugd/217982_83299c428cd44d55aba905eef8da0c64.pdf

17 minutes ago, WRB said:

Do you have a battery load tester?

Harbor Freight sells a good inexpensive Chicago battery load tester.

Tom

No load tester

8 minutes ago, Heartland said:

What type of batteries are in it?

 

lead acid

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The the battery on your truck and find out it’s still good. 😂

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11 minutes ago, Heartland said:

Wet or dry cell?

From the manual I posted Sealed, high energy density, AGM, lead-acid, rechargeable, maintenancefree, 12 volt DC

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4 minutes ago, slonezp said:

From the manual I posted Sealed, high energy density, AGM, lead-acid, rechargeable, maintenancefree, 12 volt DC

CHARGING/RECHARGING This product has a sealed lead acid battery. For maximum battery life, we recommend the Jump-Starter be kept fully charged at all times. Recharge before first use, immediately after each use, and once a month if not used. Failure to do this may reduce the battery life dramatically. 

 

This is also from the user manual.  I would guess after 6 years of not doing the above it is probably not in very good shape.

 

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 The ones I've had were recommended to be charged every 3 months whether it was used or not.

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As suggested test it. If the battery is bad it may be cheaper to just replace the battery rather than get a whole new unit. Or keep a short pair of jumper cables in the boat so if the starter battery  died you could start from my trolling motor battery.

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Had it plugged in overnight.  It shows an error on the idiot lights. Guessing it's toast. I just bought a 25ft 1 gauge 800 amp set of cables. Free with my Amazon points.

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