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Wow! I guess I opened a can of worms with my question. :-))

Perhaps I should have made clearer my intent.

817 data says output pwr is 2.5 w with internal 9.6v batt.
it also says output is 5w with ext 12v.

So simple me thinks why not install 12v internal batt to get 5w.
Simple ? Not.
12v int would need 12v charge. So question becomes can the internal
charger be set to supply 12v charge. If not question is mute.

Yep! I did research the FAQ

Thanks

Frank

--- In FT817@y..., w4wb@a... wrote:

What possible value would putting a 12 v pack into the rig have?

You

can run the rig at full output power by simply connectind a 9.6 V
pack into the external power plug. Remember that a fully charged

9.6

V NiMH batery pack has an output voltage of about 11.2 V.

72 de Barry - W4WB

--- In FT817@y..., g4ilo@q... wrote:

I don't think you'd get 200mA (actually more like 240-250mA) if

you

installed a 12V battery internally, as Frank suggested. I think

the

only solution if anyone tried that would be to add a separate
charging socket.

Julian, G4ILO

--- In FT817@y..., "David Perry" <david.perry3@v...> wrote:

The charge time can be set from 6 hours to ten hours. The

current

is fixed

at c200 mAh, so 1600 NiMH cells take two ten hour charges.

Email me if you need further assistance. (the green wire mod is

easypeasy by

the way).

David


----- Original Message -----
From: <werhr@y...>
To: <FT817@y...>
Sent: Sunday, June 10, 2001 11:58 PM
Subject: [FT817] Re: Battery compartment (Dave Perry)

Dave:

That is exactly what I needed. Did not know there was some

sort

of

removable tray for the AA batteries.

On another note, I assume that when unit is powered from a

ext

12v

source that there is some sort of control over the charging

of

the

internal battery. Do you know if the charge level of the

internal

batt is adjustable via software? Thinking of installing a 12v
internal batt supply if the charge level can be adjusted up

from

9.6 v

Thanks

Frank

W9LVC

Frank,

The 817 can run at 5W on internal 9.6 V battery. The default is 2.5, but
you can get 5W by just selecting it. You'll get the flashing power symbol.

The charger is fixed at either trickle or timed charge at fixed current.
You only have control over the time of charge.

Bill
W4RK
Nashville, TN
USA

12v int would need 12v charge. So question becomes can the internal
charger be set to supply 12v charge. If not question is mute.

I am not sure if it's mute, but it is moot, since the internal
charger is supplied by 13.8 VDC from the back connector and is
basically a constant current source...it would not be able to charge
an internal 12 to 13.8 VDC battery..

Why not just change the power level? You do this via the menu setup
and a,b,c keys. You can do that and get 5 watts with the internal
battery...even the alkalines...but NiMH are much better in terms of
maintaining voltage with the high current draw.

Thanks Bill

That answers my question very well.

Frank


--- In FT817@y..., "Bill Gerth" <bgerth@a...> wrote:

Frank,

The 817 can run at 5W on internal 9.6 V battery. The default is

2.5, but

you can get 5W by just selecting it. You'll get the flashing power

symbol.

The charger is fixed at either trickle or timed charge at fixed

current.

You only have control over the time of charge.

Bill
W4RK
Nashville, TN
USA

----- Original Message -----
From: <werhr@y...>
To: <FT817@y...>
Sent: Monday, June 11, 2001 9:03 AM
Subject: [FT817] Re: Battery compartment

Wow! I guess I opened a can of worms with my question. :-))

Perhaps I should have made clearer my intent.

817 data says output pwr is 2.5 w with internal 9.6v batt.
it also says output is 5w with ext 12v.

So simple me thinks why not install 12v internal batt to get 5w.
Simple ? Not.
12v int would need 12v charge. So question becomes can the

internal

charger be set to supply 12v charge. If not question is mute.

Yep! I did research the FAQ

Thanks

Frank

--- In FT817@y..., w4wb@a... wrote:

What possible value would putting a 12 v pack into the rig have?

You

can run the rig at full output power by simply connectind a 9.6

V

pack into the external power plug. Remember that a fully

charged

9.6

V NiMH batery pack has an output voltage of about 11.2 V.

72 de Barry - W4WB

--- In FT817@y..., g4ilo@q... wrote:

I don't think you'd get 200mA (actually more like 240-250mA)

if

you

installed a 12V battery internally, as Frank suggested. I

think

the

only solution if anyone tried that would be to add a separate
charging socket.

Julian, G4ILO

--- In FT817@y..., "David Perry" <david.perry3@v...> wrote:

The charge time can be set from 6 hours to ten hours. The

current

is fixed

at c200 mAh, so 1600 NiMH cells take two ten hour charges.

Email me if you need further assistance. (the green wire

mod is

easypeasy by

the way).

David


----- Original Message -----
From: <werhr@y...>
To: <FT817@y...>
Sent: Sunday, June 10, 2001 11:58 PM
Subject: [FT817] Re: Battery compartment (Dave Perry)

Dave:

That is exactly what I needed. Did not know there was some

sort

of

removable tray for the AA batteries.

On another note, I assume that when unit is powered from a

ext

12v

source that there is some sort of control over the

charging

of

the

internal battery. Do you know if the charge level of the

internal

batt is adjustable via software? Thinking of installing a

12v

internal batt supply if the charge level can be adjusted

up

from

9.6 v

Thanks

Frank

W9LVC

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Actually it's the "A" key in the 9th menu page that controls power.

Wow! I guess I opened a can of worms with my question. :-))

Perhaps I should have made clearer my intent.

817 data says output pwr is 2.5 w with internal 9.6v batt.
it also says output is 5w with ext 12v.

You CAN have 5w with 9.6v... for a shorter time. Set the power to where the
icon FLASHES... that's the higher-than-high power setting of 5w on internal
batteries

Thanks

Pres Waterman W2PW
c/o Patchogue Motors, Inc.
Long Island Ford and Kia dealer

GO BILLS!

But you can get 5W out using the existing 9.6V pack if you want to.
The problem is charge capacity (which is why the 817 defaults to 2.5W
when running on batteries) not voltage.

Julian, G4ILO