what if I use household 9v batteries?

[Ether]

Originally Posted by sanddrag

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.

... and for purposes of the above specification, "depleted" is defined as a battery voltage of 9.6V under an 18amp load. So, depending on your application, you may consider the battery to be "depleted" well before 25 minutes. There's not enough info in the spec to determine how low the voltage of a "depleted" battery will go (compared to a fresh battery) when under more severe load, like on an FRC robot with 4 CIM motors trying to push another bot.


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