We will assume you have lead-acid batteries (either AGM or wet cell), which have a fully charged resting voltage of about 12.7 volts. Since our Class B has an isolator, we will describe how to find out if the isolator is the source of your charging problem. If you find you have a problem with either your house or vehicle battery getting charged, it is important to check your isolator or separator. Unlike an isolator, a separator will draw some current while idle. In addition to charging both batteries from the alternator, the battery separator allows both house and vehicle batteries to be charged when you are plugged into shore power. However this article will not discus how to test a separator although the process is similar. Shown at the right is a battery separator. The job of these devices is to charge both house battery and the engine battery, yet to keep the batteries separate or isolated from each other so you will not deplete your engine battery if you run your house battery too low (and vise versa). Alternator power flows normally through an isolator or a separator. Your alternator will charge both your engine battery and your house battery. The easiest and fastest way to charge your battery is to drive. If you camp without electrical hookups it is important that you keep your batteries in good condition and that they get charged. Battery Separatorīatteries are vital to RVers. Or you can spend a lot more on a more versatile multimeter. A basic multimeter from Harbor Freight can do what you need for $5.99. Your will need a multimeter (sometimes called a VOM or Volt Ohm Meter). It is important to be able to do some basic troubleshooting yourself to fix the problem. Note that even if you have two (or more) house batteries we will use the single term battery in this article. We always want to be transparent with our customers and fully disclose any information regarding the products we sell.Nearly every motorhome owner will at sometime experience a charging problem with their house battery. If you have ANY questions please always feel free to send an eBay message or call Max Marine Electronics Inc, Pompano Beach, Florida for help, assistance or more detailed information. Please read all descriptions thoroughly, as there are times a display is used ONLY to show the item being sold is functional, working properly and these displays ARE NOT included and this will be stated in our descriptions. IF YOU DO NOT SEE SOMETHING YOU EXPECT TO BE INCLUDED IN THE PICTURES WE PROVIDE, IT WILL NOT BE INCLUDED. International customers should call or email us for a shipping estimate prior to placing an order.Īll items sold at Max Marine Electronics come as you see in the pictures provided, with ONLY the parts and accessories shown in the pictures, PLEASE do not assume any additional items will be included in your shipment. This is a used item and may have minor cosmetic scuffs or dings as shown in photos. Pleases refer to photos for item condition and sale contents. Great physical shape ready to be installed to your application. The diode only allowed the flow of voltage in one direction as designed to. This item was bench tested to ensure the internal diode was in working order. This item was acquired from an electronic retailer downsizing excess stock. Sure Power 12023A Multi Battery Isolator, 120A – Free Shipping
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