From w2ev at yahoo.com  Mon May  4 06:49:27 2020
From: w2ev at yahoo.com (Ev Tupis)
Date: Mon, 4 May 2020 10:49:27 +0000 (UTC)
Subject: [Rover] 24v/26v
References: <1768212404.552233.1588589367516.ref@mail.yahoo.com>
Message-ID: <1768212404.552233.1588589367516@mail.yahoo.com>

I'm about to venture into the area of needing 24/26VDC in a 12V vehicle.

Simplicity is desired.

I'm thinking about how to use a 12V battery in series with the vehicle battery to power the 24/26V devices while keeping the 12V devices on 12V (duh).? I'll need ~20A (max) at 24/26V.

Has anyone tried this approach with advice to share?? Maybe even a sketch to show how the two systems coexist?

Ev, W2EV

From rick1ds at hotmail.com  Mon May  4 08:45:15 2020
From: rick1ds at hotmail.com (Rick R)
Date: Mon, 4 May 2020 12:45:15 +0000
Subject: [Rover] 24v/26v
In-Reply-To: <1768212404.552233.1588589367516@mail.yahoo.com>
References: <1768212404.552233.1588589367516.ref@mail.yahoo.com>,
	<1768212404.552233.1588589367516@mail.yahoo.com>
Message-ID: <BN8PR03MB474090E284A1781E8CFF77EFFAA60@BN8PR03MB4740.namprd03.prod.outlook.com>

I never used the vehicle battery to run any radios except for one FM box.  When I needed 24V for my 902 and 2304 SSPAs, I used two 12V batteries in series. Rick K1DS/R

Sent from my iPhone

> On May 4, 2020, at 6:49 AM, Ev Tupis via Rover <rover at mailman.qth.net> wrote:
> 
> I'm about to venture into the area of needing 24/26VDC in a 12V vehicle.
> 
> Simplicity is desired.
> 
> I'm thinking about how to use a 12V battery in series with the vehicle battery to power the 24/26V devices while keeping the 12V devices on 12V (duh).  I'll need ~20A (max) at 24/26V.
> 
> Has anyone tried this approach with advice to share?  Maybe even a sketch to show how the two systems coexist?
> 
> Ev, W2EV
> ______________________________________________________________
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> Please help support this email list: http://www.qsl.net/donate.html

From gmills at frontiernet.net  Mon May  4 10:59:15 2020
From: gmills at frontiernet.net (=?UTF-8?Q?=C3=AF=C2=BB=C2=BFGreg_Mills?=)
Date: Mon, 4 May 2020 14:59:15 +0000 (UTC)
Subject: [Rover] 24v/26v
In-Reply-To: <1768212404.552233.1588589367516@mail.yahoo.com>
References: <1768212404.552233.1588589367516.ref@mail.yahoo.com>
	<1768212404.552233.1588589367516@mail.yahoo.com>
Message-ID: <21230618.926864.1588604355848@mail.yahoo.com>

Hi Ev,We have a battery in series, with a box to switch it to parallel to charge.
It has a diode so we don't start the truck off the wrong battery, with 6 awg cables through the firewall.?
The panel between the front seats, if you saw that, has a LED meter on the main battery, and another for 24 Volts. A switch there selects charge or series.
This stuff works fine, but it needs more than a lawnmower battery. It doesn't keep up with the 1296 we get around here. It's a 26 Volt 150 Watt amp from the Ukraine I think.
I like the KFM2R double deep cycle, but wanted to keep it simple. May not have ended up there.
No schematics sorry, but I'll check.
Greg - K2LDT?

Sent from Yahoo Mail on Android 
 
  On Mon, May 4, 2020 at 6:49 AM, Ev Tupis via Rover<rover at mailman.qth.net> wrote:   I'm about to venture into the area of needing 24/26VDC in a 12V vehicle.

Simplicity is desired.

I'm thinking about how to use a 12V battery in series with the vehicle battery to power the 24/26V devices while keeping the 12V devices on 12V (duh).? I'll need ~20A (max) at 24/26V.

Has anyone tried this approach with advice to share?? Maybe even a sketch to show how the two systems coexist?

Ev, W2EV
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