Jaan,
Thanks for the feedback. I got my TS7800 with the TS-781 option. What kind of
uptime did you get from your lead battery setup?
--- In "Jaan" <> wrote:
>
>
>
> Hi Robert,
>
> Yes, I've run TS-7800 from several different 12 V sealed lead-acid batteries
> (from 7 Ah to 70+ Ah). With option TS-781 of course, the small 8...30V to 5V
> converter. Then you don't have to add anything to monitor battery voltage
> (TS-781 input voltage it is directly attached to one of the ADCs with 1/9
> voltage divider).
>
> But no experience with a solar panel. Should be easy to make a simple
> charging system which does not need the controlling opportunities of TS-7800.
> With a lead-acid battery and a solar panel mixed system, the only thing you
> should need (for a 12 volt battery) is a small system with 13.6...13.8 volt
> voltage limit for float charging.
>
> It should be equally easy to use a 6 volt lead-acid battery with the 5 volt
> power system (that means, if you don't have the TS-781). You certainly need
> to add 2...3 silicon diodes in series (type 1N4007 for example) between
> battery (+) and TS-7800 (+), or else, something on the TS-7800 may burn. To
> charge the battery with float charging, you need a voltage limit of 6.8...6.9
> volts. For full (cyclic) charging, the 2...3 silicon diodes are not good
> enough for protection, because the voltage of a 3-cell sealed lead-acid
> battery may go up to 7.5 volts (sometimes more), and then you need a good 5
> volt voltage converter with a low drop, in the place of the diodes.
>
> I've also used four NiMH AA-size batteries in series (about 4.8 volts) to
> power the TS-7800, but it was a temporary solution because the batteries
> won't probably last over an hour (the current consumption is up to 1 amp).
>
> I haven't tried lithium (Li-ion, LiPo) based technologies.
>
> Jaan
>
> --- In "Robert" <robace_22@> wrote:
> >
> > has anyone run a ts7800 on batteries (vs. the wall mount)? has anyone tried
> > using a solar panel?
> >
>
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