Does anyone know how to connect a car battery so the backup battery will last longer? I bought it because I was told it can be done. And is it safe?
1072085
I would say it can be done. Having done a lot of electronics in my day it seems like a no brainier. The battery in the unit is a Lead Acid type so the charge circuit should work fine. You should consider a sealed Lead acid Battery rather than a standard Car battery or consider wiring several in parallel. The sealed battery will be much safer to store in general. If you use a standard Car battery, you could find your self boiling it or deep discharging it. In either event that would not go well if you stored in someplace that is not acid safe. You can get a pair of 9AH sealed batteries for $20 and almost quadruply this units capacity. The one in this unit is only 5AH. Just wire them parallel and you should be fine. Honestly, I would not use a standard car battery unless I stored it in my garage or at least out side my living space. One last thing to consider is that by adding a bigger battery, you are only increasing the length of time you can support the load without the Grid. You can not put a heavier load on the unit. The inverter will only safely put out the rated power no mater how big the battery is.
1072086
I replaced a battery in one of mine with a unit from Interstate (or Batteries Plus) and have had no problem for years. They selected the right model to fit the case. It is a higher rated battery.
1608020
I had the same problem with the battery connector and did not find the type of connector for the my son's car but really needed new batteries as I did was adapt the original connector (from old batteries) to the new battery set and it work perfect you can do the same. good luck
1633297
The car has 2 battery compartments. You need an adaptor to connect both at the same time.
2193559
I had some issues charging a battery in car. The instructions say to connect one lead to the frame, but I ended up connecting terminal to terminal which my be a little dangerous. It took about 20-30 mins to get enough charge to start my car.
1322202
Sally, before I would invest in a new battery, I would get a new USB cord. After purchasing the new battery and having to pay to have it installed because I could not get the battery compartment open, I found out that the "prongs" in the cable connection can become bent and thus not make a good connection.
2197627
Wellll, Yes it can, but you don't want to do it.Google and instructables dot com would be your friends here. At a high level the steps are:1. Identify + and - connections on battery.2. Break open battery case (preferably a dead one).3. Remove batteries.4. Add wires to battery contacts.5. Connect wire to a 12 volt DC power supply with 'enough' amps, or to your car battery (better watch that polarity!)But given the fact that a new battery is around 35 bucks - it aint worth doing.
941267
It depends on your car some cars have slow constant drains in them from security systems and lighting and advanced electronics and these would trick the Sansour into giving incorrect readings on your batteries voltage so most of the time the battery is suggested to be disconnected but if it's just for a little top off charge you can get away with it
1399046
I would like to know same: if used with car battery that is in the car (not taken out), does the car need to be running????????? Also, does anyone have an estimate of time it would take to charge?
1919330
i use a car battery for the same set up but did you have luck with a lawnmower battery? how long did it last between charges?
682101
One more little helpful hint though...don't leave it ON or it WILL go dead a lot quicker! Found that I had done that last night when I had a dead battery and was like, no big deal...I have my handy jumper...which I then found I had left on and was dead! My bad! :P
51626
Schumacher told me that if the battery is dead to connect it to a good one in a nearby vehicle for about 15 minutes using jumper cables to get the dead battery up to about 3 volts because their products won't charge a battery that is "dead-er" than one having less than 3 volts in it. After the 15 minutes, you can detach the jumper cables and use the Schumacher unit to increase the charging of the battery.
1620473
If you could tell the capacity of your battery then we may compare. I personally found this starter useful even for completely dead battery. In that case, I simply leave starter connected to battery for whole night to transfer some charge to car's battery. Then charge starter again and it always works... Also I noticed that if car has computer on board then you need to pay attention that after successful start there are no errors displayed. Those errors may mean that car will NOT charge battery and even after 100km drive, you will end up with the same dead battery. Wish you safe driving!
584779
Hi Dan Battery is very bad. Aftre the whole night charging it warked only 3-5 min. I decided to connect to the car electricity my device permanently, find a good electric, or use the car charger device.
1356256
I'm not exactly a car guy, but I like doing some things myself, so I just took my car to a shop and asked if they could drop a auxiliary wire for me. They rigged to up out of the fuse box near the drivers feet. Probably attached it to the fuse panel because you want it to turn off and on with the car. If you attach it directly to the battery, it will constantly be powered on and will drain the battery.
1269793
Good question. I would ask the manufacturer I had a question of them once and they were fairly prompt in answering. With mine I only need to connect to the batteries on my pick up camper and charge away!
1265235
Your car has to be able to charge the battery that way so i'd check your owners manual just to be safe if you havent already. but we had a Toyota Prius and the ignition battery died so bought this and a quick jump kit. we jumped it from the cig lighter anytime the car wouldn't start. we never left it plugged in longer than to start the car. hope this helps!
2134055
It connects directly on top of your battery terminal and the back you connect you existing cable. When you unscrew the green knob, the power is cut from the battery to the vehicle. Very simple. If you are leaving your vehicle for any length of time, you might consider a "battery tender" to keep the battery from going bad over time without the vehicle being run.