| Author |
External Power to GPS
|
|
| Shorty 2005-11-01, 11:48 pm |
| I have a Garmin GSPmap 76 that I want to provide external power to from a 12
V battery. Since the range of input is 8 - 35 V DC, there is no problem
here.
My question is should the Garmin internal batteries be the rechargeable kind
or the regular kind? Or does it make any differences?
Thanks.
| |
| peter 2005-11-01, 11:48 pm |
|
Shorty wrote:
> My question is should the Garmin internal batteries be the rechargeable kind
> or the regular kind? Or does it make any differences?
The internal batteries will *not* be recharged when using the unit on
external power. So you can use either primary or rechargeable cells
internally. If you'll only rarely be using the unit on internal power
then primary cells (either alkaline or lithium) would be preferred
since they retain a charge longer (less self-discharge). OTOH, if
you'll frequently be using internal power then NiMH rechargeables would
be less expensive overall.
| |
| Shorty 2005-11-01, 11:48 pm |
| >>> The internal batteries will *not* be recharged when using the unit on
external power. >>>
Thanks for the information. That was the info I wanted.
"peter" <prathman@comcast.net> wrote in message
news:1130887116.960832.140670@f14g2000cwb.googlegroups.com...
>
> Shorty wrote:
kind[color=darkred]
>
> The internal batteries will *not* be recharged when using the unit on
> external power. So you can use either primary or rechargeable cells
> internally. If you'll only rarely be using the unit on internal power
> then primary cells (either alkaline or lithium) would be preferred
> since they retain a charge longer (less self-discharge). OTOH, if
> you'll frequently be using internal power then NiMH rechargeables would
> be less expensive overall.
>
| |
| Steve Calvin 2005-11-01, 11:48 pm |
| Shorty wrote:
>
> external power. >>>
>
> Thanks for the information. That was the info I wanted.
>
> "peter" <prathman@comcast.net> wrote in message
> news:1130887116.960832.140670@f14g2000cwb.googlegroups.com...
>
>
> kind
>
>
>
I tried NiMH rechargables and didn't care for them. For whatever reason
they didn't hold a charge all that long. I use Lithium Ion throw-aways
in my 76CS now exclusively while not in the car and the have a very
acceptable life. In the car, I have a 12V power cord.
--
Steve
Never read the fine print. There ain't no way you're going to like it.
| |
|
| Steve wrote:
> I use Lithium Ion throw-aways in my 76CS
Lithium ion cells are rechargeable and have a voltage of about 3.7V
making them unsuitable as a direct AA cell replacement. The primary AA
cells (by Energizer and others) are lithium iron disulfide which have a
lower voltage (about 1.6V) and can be used in place of alkaline AAs.
They work fine, especially in cold temperatures, and have a very long
shelf life. But they are expensive if the GPS will frequently be used
on internal battery power for long periods of time.
|
|
|
|