[Shop-talk] Dead battery question

[Donald H Locker]

The jump box doesn't have to supply cranking current, it only needs to provide some charging current to the primary battery and can afford to do so at a relatively low (tens of amps) current for a minute or so. After that, the primary will have sufficient charge to provide the cranking current.

Donald.

On 1/1/23 17:14, Jimmie Mayfield wrote:

> Which one do you have? I've looked at a few and it seems like all of them have ridiculously undersized wires.
>
> J
>
> On 1/1/23 16:58, Doug Braun wrote:
>
>>> First of all, if you have a lead-acid jump box, throw it away and get a new lithium one. They work great and hold their charge for a long time.
>>
>> Doug
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