Monday, Nov 06, 2006 at 15:02
MC121045C..... 4500mA battery charger
12v Cranking battery - maximum 650 cca
12v Deep Cycle battery - maximum 80 a/h
Above are technical specs of battery charger mentioned,
note; it's NOT recommended for Cranking batteries over 650 cca.
Large diesel cranking batteries are often >700 cca's
Most effective Deep Cycle batteries are
well in excess of 80 a/h
By comparison the "AC1000" is 6200mA which is ~40% more power and is therefore rated by the manufacturer as suitable for up to 800 cca batteries and 100 a/h DC's
However it will only charge to 14.2v so the final 'boost' charge is not available.
I believe the AC1000 is only about $100 and fully automatic.
Option (1)
If you NEED in excess of 14.2v and your alternator IS REGULATED to about 14.2v you will need a higher rated charger like the MC121045C
BUT...
what happens when you install the battery charged on the 'expensive' charger at about 15v into your vehicle, the battery will never be fully charged ever ever ever again, till you again recharge it with the 'expensive' charger as the vehicle alternator/regulator won't be able to maintain the higher required charge!!!
IF, as we have said above, the alternator IS regulated to only about 14.2v
Option (2)
The most probable scenario.
The vehicle alternator/regulator WILL charge in excess of 14.2v
therefore;
You can use the 6200mA (10a) battery charger to get the initial 14.2v charge back into the battery and install the battery into the vehicle, it WILL start the vehicle and the alternator/regulator WILL fully recharge it....when driven.
Note; the caps are there only for emphasis - not screaming L0L
FollowupID:
462928