E-tec 40 battery Q

[amady]

Which battery power do Evinrude suggest for e-tec 40?<br />Is 70 AH enough?<br /><br />tnx

 

[WillyBWright]

Re: E-tec 40 battery Q

I don't have specs but that sounds like a Deep Cycle battery. I would think you'd want a Starting battery. In general, motors that utilize a lot of electricity to run can't get too big of a battery. I prefer to rig a boat with the next size larger battery than is specified. Remember, those are Minimum requirements for the motor alone. Then you have Boat systems above and beyond that.

 

[Silvertip]

Re: E-tec 40 battery Q

Install the largest marine starting or dual purpose battery that will fit in the available space. The difference in price is insignificant and you will be assured you won't run out of power. Your engine has a hefty alternator on it so keeping it charged is not a problem.

 

[Tracy Coleman]

Re: E-tec 40 battery Q

Your engine or any E-TEC does not use any battery voltage except to run the starter motor. Thats why E-TECs can run without a battery. The alternator/magneto develops it's own power to run the computor/fuel injectors/spark. I think net charge to the battery is 25 amps if needed.<br />Backfire

 

[rabidfish]

Re: E-tec 40 battery Q

Backfire's advice is right on. You only need enough power to crank. However, cranking power is subject to be used up with electrical accessories also, so you're back to the largest battery possible. The two spec to look for are CCA(cold cranking amps) and RC(reserve capacity) In either case, the more the better.

 

[marinemech]

Re: E-tec 40 battery Q

i think its 650 cold cranking amps no one has been able to explain reason for such a large battery the v-4 d i motors don't even need one this big<br />we have run e-tecs on 550 cca batteries with no trouble