Thread: what if I use household 9v batteries?
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Unread 03-04-2010, 16:28
sanddrag sanddrag is offline
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Re: what if I use household 9v batteries?
Quote:
Originally Posted by Jeffy View Post
OUr kit batteries can give 18 amps for one hour.
The above is not correct. The capacity of the battery is not constant for different loads. Due to the chemistry of the battery, it is not a 1 to 1 relationship between current draw and run time. The capacity of sealed lead acid batteries is typically rated based on a 20 hour discharge. According to the spec sheet, the MK ES17-12 has a capacity of 8.1 Amp-ours under an 18 Amp draw, meaning it would last about 25 minutes before it will be depleted.
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