Calif Bill wrote:
"BetaB4" wrote in message
motor. So, when I take the boat out and use the electric motor, I
need to recharge the battery when I get home.

Just use a cheap timer to charge the battery for 10-12 hours after you
return from fishing. The battery sitting unused will not discharge
much.

About using a timer..., if I use a timer and the timer turns off the power
to the battery charger when the time is up, the battery charger will still
be set to "ON" and it will still be connected to the battery. Is there any
problem with that?

Somehow, that seems like the battery charger circuit will still be connected
to the battery, and the battery will discharge back through the battery
charger. On the other hand, if the battery charger switch is set to "OFF",
and the battery charger is left connected to the battery, I assume that the
circuit between the battery and the battery charger is disconnected.

But, with the timer approach, there is no way to switch the battery charger
switch to the "OFF" position at the end of the pre-set elapsed time.

"BetaB4" wrote in message
...
Calif Bill wrote:
"BetaB4" wrote in message
motor. So, when I take the boat out and use the electric motor, I
need to recharge the battery when I get home.

Just use a cheap timer to charge the battery for 10-12 hours after you
return from fishing. The battery sitting unused will not discharge
much.

About using a timer..., if I use a timer and the timer turns off the power
to the battery charger when the time is up, the battery charger will still
be set to "ON" and it will still be connected to the battery. Is there
any problem with that?

Somehow, that seems like the battery charger circuit will still be
connected to the battery, and the battery will discharge back through the
battery charger. On the other hand, if the battery charger switch is set
to "OFF", and the battery charger is left connected to the battery, I
assume that the circuit between the battery and the battery charger is
disconnected.

But, with the timer approach, there is no way to switch the battery
charger switch to the "OFF" position at the end of the pre-set elapsed
time.


Never saw a problem with the charger I used. I very much doubt any dumb
charger has any difference from it being off and no power to the charger.

Calif Bill wrote:
"BetaB4" wrote in message

About using a timer..., if I use a timer and the timer turns off the
power to the battery charger when the time is up, the battery
charger will still be set to "ON" and it will still be connected to
the battery. Is there any problem with that?

Never saw a problem with the charger I used. I very much doubt any
dumb charger has any difference from it being off and no power to the
charger.

Now, I'm getting curious, so I tried a Google search on this question. Not
too much info so far, but here's what I did:

I did a Google search for "leaving an unplugged battery charger connected to
battery" (without the quotation marks). One of the results was this:

http://www.hydrolynx.com/_manuals/5030.pdf

It says,

"To remove the battery charger after the charging has been completed, unplug
the charger
from the power outlet before removing the terminal lugs or connector from
the battery.

Remove the terminal lugs from the battery terminals immediately. Do not
leave a fully

charged battery connected to an unplugged battery charger. In some
instances, the

charger will drain the battery through the power transformer."

On May 15, 3:42*pm, "BetaB4" wrote:
Calif Bill wrote:
"BetaB4" wrote in message

About using a timer..., if I use a timer and the timer turns off the
power to the battery charger when the time is up, the battery
charger will still be set to "ON" and it will still be connected to
the battery. *Is there any problem with that?

Never saw a problem with the charger I used. *I very much doubt any
dumb charger has any difference from it being off and no power to the
charger.

Now, I'm getting curious, so I tried a Google search on this question. *Not
too much info so far, but here's what I did:

I did a Google search for "leaving an unplugged battery charger connected to
battery" (without the quotation marks). *One of the results was this:

http://www.hydrolynx.com/_manuals/5030.pdf

It says,

"To remove the battery charger after the charging has been completed, unplug
the charger
from the power outlet before removing the terminal lugs or connector from
the battery.

Remove the terminal lugs from the battery terminals immediately. Do not
leave a fully

charged battery connected to an unplugged battery charger. In some
instances, the

charger will drain the battery through the power transformer."

That's the key right the

"In *SOME* instances, the charger will drain the battery through the
power transformer."

BetaB4 wrote:
Calif Bill wrote:
"BetaB4" wrote in message
motor. So, when I take the boat out and use the electric motor, I
need to recharge the battery when I get home.

Just use a cheap timer to charge the battery for 10-12 hours after you
return from fishing. The battery sitting unused will not discharge
much.

About using a timer..., if I use a timer and the timer turns off the power
to the battery charger when the time is up, the battery charger will still
be set to "ON" and it will still be connected to the battery. Is there any
problem with that?

Somehow, that seems like the battery charger circuit will still be connected
to the battery, and the battery will discharge back through the battery
charger. On the other hand, if the battery charger switch is set to "OFF",
and the battery charger is left connected to the battery, I assume that the
circuit between the battery and the battery charger is disconnected.

But, with the timer approach, there is no way to switch the battery charger
switch to the "OFF" position at the end of the pre-set elapsed time.


There might be blocking diodes to prevent reverse current flow. Check
with the manufacturer or do your own experiment to see what happens.

On May 15, 1:49*pm, "BetaB4" wrote:
Calif Bill wrote:
"BetaB4" wrote in message
motor. *So, when I take the boat out and use the electric motor, I
need to recharge the battery when I get home.
Just use a cheap timer to charge the battery for 10-12 hours after you
return from fishing. *The battery sitting unused will not discharge
much.

About using a timer..., if I use a timer and the timer turns off the power
to the battery charger when the time is up, the battery charger will still
be set to "ON" and it will still be connected to the battery. *Is there any
problem with that?

Somehow, that seems like the battery charger circuit will still be connected
to the battery, and the battery will discharge back through the battery
charger. *On the other hand, if the battery charger switch is set to "OFF",
and the battery charger is left connected to the battery, I assume that the
circuit between the battery and the battery charger is disconnected.

But, with the timer approach, there is no way to switch the battery charger
switch to the "OFF" position at the end of the pre-set elapsed time.

Actually, your battery charger has diodes in it (one way electrical
valves) that allow the current to flow to the battery but not back to
the charger. you shouldnt have any problem there.