Another CAI 302 Maitenance question

[Nick Kennedy[_3_]]

Hey T8 and maybe Dave Kinsell
I've removed my 302 from my plane for the winter.
I understand I have to power it up once in awhile to keep the GPS engine charged.
How often and for how long should I power it up?
TIA
T

[kinsell]

On 11/17/19 10:17 AM, Nick Kennedy wrote:
> Hey T8 and maybe Dave Kinsell
> I've removed my 302 from my plane for the winter.
> I understand I have to power it up once in awhile to keep the GPS engine charged.
> How often and for how long should I power it up?
> TIA
> T
>

I expect if it was powered for three hours three times over the winter,
that would be conservative. It's a tiny rechargeable battery you're
recharging, so it will eventually wear out even with frequent recharging.

I have more faith in the PF logger and use that, with the 302 left in
the panel just for the variometer. Last I checked, the date was still
correct.

-Dave

[Tango Eight]

On Sunday, November 17, 2019 at 4:26:15 PM UTC-5, kinsell wrote:
> On 11/17/19 10:17 AM, Nick Kennedy wrote:
> > Hey T8 and maybe Dave Kinsell
> > I've removed my 302 from my plane for the winter.
> > I understand I have to power it up once in awhile to keep the GPS engine charged.
> > How often and for how long should I power it up?
> > TIA
> > T
> >
>
> I expect if it was powered for three hours three times over the winter,
> that would be conservative. It's a tiny rechargeable battery you're
> recharging, so it will eventually wear out even with frequent recharging.
>
> I have more faith in the PF logger and use that, with the 302 left in
> the panel just for the variometer. Last I checked, the date was still
> correct.
>
> -Dave

It's just a guess, but that sounds like a good guess.

T8

[JS[_5_]]

On Sunday, November 17, 2019 at 5:18:35 PM UTC-8, Tango Eight wrote:
> On Sunday, November 17, 2019 at 4:26:15 PM UTC-5, kinsell wrote:
> > On 11/17/19 10:17 AM, Nick Kennedy wrote:
> > > Hey T8 and maybe Dave Kinsell
> > > I've removed my 302 from my plane for the winter.
> > > I understand I have to power it up once in awhile to keep the GPS engine charged.
> > > How often and for how long should I power it up?
> > > TIA
> > > T
> > >
> >
> > I expect if it was powered for three hours three times over the winter,
> > that would be conservative. It's a tiny rechargeable battery you're
> > recharging, so it will eventually wear out even with frequent recharging.
> >
> > I have more faith in the PF logger and use that, with the 302 left in
> > the panel just for the variometer. Last I checked, the date was still
> > correct.
> >
> > -Dave
>
> It's just a guess, but that sounds like a good guess.
>
> T8

If the 302 is already out of the glider, it would be a good time to replace the GPS engine. Send it to Gary Kammerer.
..... Caution! Attenzione! Vorsicht! Precaución!
This involves spending money, which glider pilots are famous for avoiding.
Jim

[Nick Kennedy[_3_]]

Gents
Thanks for the responses.
Wilco
Craggy keeps bugging me to get a S 100 but my two 302's still work great and seem to suit my flying style.
I had Gary Kammerer replace the GPS engine in one of them back in 2015, the other ones still seems OK with a good date lock.
Cheers
T