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Old 05-11-2014, 08:15 AM   #1
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Towed Battery Charger

Has anyone tried a towed battery charger? I was thinking about getting one and wondered if this would take the place of pulling fuses and save resetting clocks and other things in towed car?
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Old 05-11-2014, 10:48 AM   #2
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Check and see if you have a pin on the connector (for a 6 pin it is the center pin) that supplies turn, brake, park lights from the rv. If so, run a wire from that pin to your towed battery. Be sure to install a fuse in this wire near the battery of the towed. This fuse will protect the wire in the event of a "back-feed".
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Old 05-11-2014, 10:51 AM   #3
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I have the configuration that alilly suggested. Never worry about discharging the toad.
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Old 05-11-2014, 11:09 AM   #4
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As stated, a charge line from the MH to the Toad Battery is the answer. Plug in and go. Needs to be fused on BOTH ends for proper protection.
Here is a little blurb that will get you pointed in the right direction.

Trailer Wiring & Electrical - Installation Guide | Hitch Info
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Old 05-11-2014, 11:24 AM   #5
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We have a 'jump start' battery pack that has a plug-in that I use for the braking system in our TOAD. That way I do not use the battery in the TOAD. When we stop at night, I plug in the battery pack to re-charge it for the next day and so far we have not had any issues.
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Old 05-11-2014, 11:30 AM   #6
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I installed a charge wire from chassis batteries to toad battery. Instead of a fuse, I used an auto reset 20 amp circuit breaker. It's wired through the 6 pin connector so no extra steps in hooking up toad. The RV's alternator maintains the toad's battery with no issues. I don't see the need for a separate charger for the toad's battery. The only time it might be an issue is when starting RV, but the circuit breaker stops too much draw from the toad battery when starting.
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Old 05-11-2014, 11:31 AM   #7
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I have the Charge Line on my MH/CRV to power the BlueOx Patriot that is plugged into the Cigar Lighter.
Just plug in and go. No pulling fuses, charging batteries or rigmarole. Simple. Best of all, no dead battery!
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Old 05-11-2014, 12:22 PM   #8
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Thumbs down

Quote:
Originally Posted by jlr44 View Post
Has anyone tried a towed battery charger?
Ok, I give. What's a towed battery charger?
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Old 05-11-2014, 12:45 PM   #9
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Towed Battery Charger

Quote:
Originally Posted by lanerd View Post
Ok, I give. What's a towed battery charger?

IMHO, it is another gizmo to suck money from unknowing RVers to fix a problem that is easily solved with a simple wire connection and a couple of fuses. Not sure what they sell for but I can assure you it will be many times more than some wire and fuses. Sounds Impressive though. Would look good on the Garage Sale Table. LOL

http://www.lslproducts.net/ToadChargePage.html


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Old 05-11-2014, 12:51 PM   #10
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Quote:
Originally Posted by lanerd View Post
Ok, I give. What's a towed battery charger?
Here you go......

TOAD-CHARGE Dinghy Vehicle Battery Charger/Maintainer

Buy 5 and save!!
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Old 05-11-2014, 01:42 PM   #11
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Ok... thanks.

But doesn't it "still" require a 12v line from the mh? I'm confused....what does it provide over a simple 12v line from mh battery to toad battery? I mean, the 12v line is already there, right?

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Old 05-11-2014, 01:51 PM   #12
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Quote:
Originally Posted by lanerd View Post
Ok... thanks.

But doesn't it "still" require a 12v line from the mh? I'm confused....what does it provide over a simple 12v line from mh battery to toad battery? I mean, the 12v line is already there, right?

According to which one you buy, you get 40-60' of wire too. Yes, it needs a wire between toad and RV, but instead of incorporating it into the 6/7 pin umbilical cord, they use a two wire separate harness and connector. You also get 3 colorful LEDs to show you it's working - - - - when you stop and open the hood of the toad!
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Old 05-11-2014, 02:26 PM   #13
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I was looking at the one at rvibrake.com for $50. looked simple with no feedback.
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Old 05-11-2014, 02:53 PM   #14
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If you have a 12 v battery in the RV being maintained by the alternator, hooking a second battery to that first one will also be maintained. Unless the voltage regulator of the RV fails, it won't overcharge the toad battery. As the toad battery uses energy, it will be replaced by the alternator in the RV. I see no advantage to one of these devices to 'maintain' the toad battery. A couple of auto reset circuit breakers, one near each battery, does the same, of course you don't have the little LED's to look at. (and use energy)
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