how about F250 duel battery might take longer???have power to the plug with key off how about the cord open a window
1262559
this is a connector to your battery MAINTAINER not a charger. Its recommended to be connected after the battery is charged.
1262560
It should work on a dual battery F-250, have not tried that but having owned an F-250 I know the batteries are connect through the same system. It would keep the batteries charged during idle periods or charge a dead battery, in theory it would just take twice as long
1262561
I have a Chevy 2500 Duramax with dual batteries. I started with the BT Junior. I upgraded to the 1.25A Battery Tender quickly. It will charge the dual batteries with the smaller charger, but it will take quite a while. I run all of mine in the cigarette lighter and crack the window. I lace the cord through the steering wheel so I don't forget I am plugged in.
1262562
I have a F-250 Diesel (Dual Batteries) with the Battery tender hard wired to the right (Pasengers side) No problems with it maintaining the charge once its charged. It does take a long time for the "Maintain" light to come on. Usually overnight, but I have (2) 900AH Batteries installed. I do have a Battery Tender Cigarette lighter adaptor also which I use on a different vehicle and have no problems using it either.
1262563
Sorry can't help you. I use mine on my Boxster. I do use the lighter socket as the charge port with no problem and pass the cord through a slight opening of the passener side window while parked in the garage. As I have it set up, the Battery Tender functioned flawlesslyl I did have to change out the original Porsche lighter socket since Porsche, back when I purchased my car, did not use the standared sized lighter socket.
1262564
Can't address the duel battery issue, I've never tried it. As for the lighter adapter, are you serious? If you can get the cord attached without cracking a window, more power to you! ;-)
1262565
I can't answer your question, sorry. I am using the battery tender on my '96 Jaguar and it is working well and doing what is advertised to do. Suggest you visit company website and post your query there. An F250 is out of my range of expertise but ask me about an Austin Healey, '50 Dodge Pickup or my '96 Jaguar and I might be more knowing. Can't spell knowledge - able. Good luck.
2129662
I think you could unplug the electrical connections in a couple minutes. The power/ground/power-on-signal wires are all on one plug. The speaker inputs are an easy connection also. How you temporarily mount this unit in your trunk may be the hardest thing to disconnect.
1902505
I am using mine to keep the battery charged on my truck which sits idle a lot. A lot of factors are involved. How sunny is the location how much power the gate opener requires etc. You might want to go to something a little larger than 10W
296707
Very simple, remove plastic tab in back which allows battery to work once removed. Pick a spot where you like to put in your vehicle once selected there will be a velcro strip. Peel back layer off it and stick where you want the unit placed. I suggest running external wire to outside of car before sticking to velcro. Once wire is ran properly to outside of car you are now ready to use your product :) enjoy!
1809348
There should be a button to turn it on otherwise you might have to charge it first before use. There is a computer program that you can DL to make the experience much better because it gives you extra information about your car.
1100907
if the blue light stays on with key off - it will drain battery - if blue light goes off - then you are only "hot" when key is used
1888252
I do, but you'd want to make sure that your outlet turns on with the ignition only. Mine stays plugged in 24/7.
1975853
Yes, but you still have to unplug it when you start your car. Also if its anything like the one of got it wont last more than a few hours anyway.
1665364
No idea how you define "long time", but I would say "NO!" I drained the battery on a new F-150 over night to the point where the truck wouldn't start, though the cooler fan was still running. You'll have to do the math (battery amp hours divided by the unit draw) to get the number of hours the battery will provide, but then you need to start your car.
60114
That's way too long. It seems to take longer than usual with some cheap batteries and with rechargeables. Even then, not 20 minutes. I'd double check that it's not the batteries if convenient and/or contact the seller/mfgr to see if they'll swap it for another one.
492957
Yes, but make Shure you have a good battery and keep your car running, cause if you don't it'll drain it in about an hour
739795
I connected to the radio power wire. That way it works for a few minutes even after the key is turned off. Every vehicle is different of course. If you do go to the battery direct, be sure to put fuse coupler in next to battery. I have had mine installed for over a year and so far works great.
720839
You can use 9Volt battery to opening or you can use back up keys to opening
2170530
If you wire the system to the ignition so when the key is off the power is also off so it won't drain your battery
1429887
You are better off changing the ignition. A key is fun but all you need is a switch to turn on and off. My son looses his key and luckily we keep finding it.
1485989
Yeah. If the battery gets used up just plug it via usb to your computer, 115vac, car usb converter... Lights go all disco too. Pretty cool imho
1349287
Try the battery first, of course, but if that's not it, you should call customer service. One time they had me change a setting in the unit that plugs into the wall. I will say, though, that this is not a reliable product and doesn't last very long, especially if you are using it a place where it is subject to weather. I have two--one at the front door in a breezeway and one on a gate outside by the mailbox. The one in the covered area last a lot longer than the other.