Maker Pro
Maker Pro

Electromagnet

davenn

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Sep 5, 2009
14,081
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Sep 5, 2009
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14,081
hi,
it says 6.2 Watts for the 50mm one

so with a formula of Watts = Volts x Amps or Amps = Watts / Volts
work out the current drain

once you have worked out the current drain then you need to work out the battery life for a
given A/hr rating of our battery

for example ..... a battery with a say 120A/hr rating would last ~ 240 hrs give or take a bit
with a 500mA drain

find out the rating of your battery its prob is on the battery label

post your results and we can check them :)

cheers
Dave
 
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