Charging batteries, and charging them.

You should not need to charge your crank battery. The engine will do a good
enough job at that. As for the trolling batteries, I assume that you will
hook them up in parallel for your current 12v trolling motor. When you
switch to a 24v, you will need to hook the batteries up in series.

Jeff


"Charles B. Summers" cbsummers@(bellsouth)(dot)(net) wrote in message
. ..
In getting ready to replace my 12v trolling motor with a 24v, I've went
ahead and installed the second battery in the boat. So right now, I'm
wondering how to charge all three batteries with a two bank charger. I've
hooked the charger up to both trolling motor batteries, removing one set
of
leads from the cranking battery. This is just temporary so I can make sure
that the second one is fully charged in case the other runs down.

Is it necessary to recharge the starting battery all the time like the
trolling battery? I'm know the motor will keep a charge on it, but is it
enough?

What if I connect the two trolling batteries parallel? How should I charge
them?

Am I going to need a three bank charger or add a second one for the
starting
battery? I'm totally not familar with any of this...
--
Charles Summers
Secret Weapon Lures
http://www.secretweaponlures.com

Since a 2 bank charger normally uses a common ground, you cannot charge a 24
volt system with it. If you sketch it out on paper, you will see you have to
create a direct short. That can ruin your day. Like others have recommended,
get a 3 bank charger and do it right.

--
Bill
Chesapeake, Va


"Charles B. Summers" cbsummers@(bellsouth)(dot)(net) wrote in message
. ..
In getting ready to replace my 12v trolling motor with a 24v, I've went
ahead and installed the second battery in the boat. So right now, I'm
wondering how to charge all three batteries with a two bank charger. I've
hooked the charger up to both trolling motor batteries, removing one set
of
leads from the cranking battery. This is just temporary so I can make sure
that the second one is fully charged in case the other runs down.

Is it necessary to recharge the starting battery all the time like the
trolling battery? I'm know the motor will keep a charge on it, but is it
enough?

What if I connect the two trolling batteries parallel? How should I charge
them?

Am I going to need a three bank charger or add a second one for the
starting
battery? I'm totally not familar with any of this...
--
Charles Summers
Secret Weapon Lures
http://www.secretweaponlures.com

Wrh wrote:
Since a 2 bank charger normally uses a common ground,

I've never seen a modern onboard charger that does! Admittedly I haven't
seen every one out there, but the DualPros, the Guests, and the ProMariners
(which also makes the house brand for BPS and Cabelas) all have isolated
outputs with independent grounds.

RichZ©
www.richz.com/fishing

Yup... my ProMariner has independant grounds. I wonder if they're all common
internally, but I doubt it. Maybe one day when I get a little free-time,
I'll try to ohm out the leads. Who know?

I'm leaning towards getting a Dual-Pro single bank for when I want to top
off the starting battery... have you checked the prices of three bank
chargers lately??? WOW!

--
Charles Summers
Secret Weapon Lures
http://www.secretweaponlures.com
"RichZ" wrote in message
...
Wrh wrote:
Since a 2 bank charger normally uses a common ground,

I've never seen a modern onboard charger that does! Admittedly I haven't
seen every one out there, but the DualPros, the Guests, and the
ProMariners
(which also makes the house brand for BPS and Cabelas) all have isolated
outputs with independent grounds.

RichZ©
www.richz.com/fishing

Several years ago I had a Guest with common ground. I haven't fooled with
them lately since I went to a 24V trolling motor.

--
Bill
Chesapeake, Va


"RichZ" wrote in message
...
Wrh wrote:
Since a 2 bank charger normally uses a common ground,

I've never seen a modern onboard charger that does! Admittedly I haven't
seen every one out there, but the DualPros, the Guests, and the
ProMariners
(which also makes the house brand for BPS and Cabelas) all have isolated
outputs with independent grounds.

RichZ©
www.richz.com/fishing