A car battery rated 45 A H is charged with a charger whose rating is 2.5A.How long will it take to charge the battery full?

Craig Duffy

9 years ago

Current = charge / time



where current = I = 45

charge = Q = ( not given)

Time = t = 1 hour.



substituting in to d formulae. and solve for charge(Q)



I = Q /T



Q = 45.



when current = 2.5, and Charge = 45, Time =..



t = 45/2.5

= 18 hours.

Bigdaddy98

1 year ago

45 AH means 45 ampere hour. so that's I*t which is charge formula. we were given current, I so we would find t
Q=It
Q=45AH
I=2.5A
t=?hr
t=Q/I
t=45/2.5
t= 18hourz

Jaswill Allwell

9 years ago

u're too much bro