Description
Confirm the selected variation, quantity, package contents, current offer, and store terms before placing an order.
Product Description
How to choose the right model for your damaged converter?
Models of power converters are WF-8955-MB, WF-8955-AD-MBA, WF-8955LIS-MBA.
WF-8955-MB is used for lead-acid batteries, WF-8955LIS-MBA is used for lithium batteries, and WF-8955-AD-MBA can be used for both lead-acid and lithium batteries.
So if your original converter model is WF-8955-MBA or WF-8955-AD-MBA and the battery is lead-acid, you should choose the lead-acid version.
If your battery is lithium, select the lithium version.
How to choose the right brand?
The voltage of the lead-acid battery is 13.6V, the voltage of the lithium battery is 14.6V, and the curve of different types of batteries is different when charging.
Other brands only design one type of converter to match lead-acid batteries and lithium batteries. This means that it doesn’t fit into your battery and can only provide a simple charging solution.
Our converters differentiate between lead-acid battery versions and lithium battery versions. Whether your battery is lead-acid or lithium, you can get the right voltage and charging process. This design has the same voltage and charge curve as your original converter, which will greatly extend battery life and increase usage time.
Three stages of intelligent charging
Increase your lead-acid battery voltage to 14.6V, then enter trickle mode and maintain battery power.




BubbaTJ –
I live in my RV. I’m also a multi-craft electro-mechanical technician. I normally just tell people I’m a wizard because they don’t understand my work. That being said, I noticed some intermittent electrical failures. Like the tv dropped offline and then restarted. In a case like this one can start looking for the problem immediately or wait until it gets worse and then it’s easy to find. The melted outlet and arcing connection screamed “I’m right here”In the spirit of full honesty, I installed a double pole single throw 30 amp breaker in the PDP I’m tied into for shore power. I should have installed a single pole 30 amp breaker. Basically, the professional electrical technician sent 240 instead of 120 Picture this BAD! A/C came on and went off then I compounded the problem by resetting the tripped breaker inside the R/v, fyi electricity runs on smoke, if you let the smoke out it won’t work anymore. Enough smoke came out on this one that I grabbed a fire extinguisher and started pulling the panel thinking “this is going to be one hell of an insurance claim”. I proceeded to re-wire and I noticed I was steadily dropping the DC side out.Time to order a part, which you should know as I’m writing a review. My biggest concern was I’ve replaced dozens of converters in the last few years , and as they’re a frequently returned item I’ve received some that were failing on my test bench, different brand but always a possibility.Ease of installation is dependent one one’s experience with electrical components. In my case, the hardest part was I didn’t have a “hand it “ so I was laying in the floor with no one to hand me tools. The previous owner had done some modifications and went testosterone fueled lug torquing making it difficult to loosen the terminal lugs and had some other “I know enough about electrify to be dangerous modifications” I fixed while I had the panel apart.This was a direct replacement for the old part so it was a very simple and easy install. All my systems went back to proper function as soon as the replacement was completed. Functionality is perfect. Charging? I don’t care. I’ve never looked at the battery on this unit because I’m always on shore power.I’ve read reviews where people complained about fan noise???? It’s not loud. If it bothers you turn the tv up and quit crying. The number one concern on install is make sure you’re de-energized. The 60hz shuffle is never fun. Murphy’s law kicked in because my wife was supposed to come for a conjugal camper visit that didn’t happen because of the lack of air conditioning.There are simple ways to bypass the dc side of a system if you’re on the road. Keep a small battery charger in your RV. If you lose dc power and have ax power just plug in the charger and you can use that to get by for a couple of days. I’m satisfied. The a/c,tv, and lights work. And remember, if you don’t k ow what you’re doing YouTube is the repair manual for everything.
Customer –
The fan runs ALL the time when the interior 12V lights are on. I’ve worked in the RV industry for many years and I’ve never heard or seen the fan run constantly with ONLY a 12 V light on. It is only supposed to run when it calls for it to cool it down or when battery is charging.
Debra –
We arrived to our camper knowing that tge inverter was going, but it was done. Took pictures before taking out the old one. Wrote down where the wires went. Installed thw other one in about 30 minutes. Works great!!!!!
Pamela S. –
This was a perfect fit for my 29 foot fifth wheel to replace the old converter. I’m a 65 year-old woman a bit handy and was able to replace it easily.
Marty P –
So far so good. It is advertised as being able to auto detect the type of battery and adjust the output voltage accordingly. I don’t see evidence of that. It puts out 14.6 volts with a lead acid battery connected. Its not a concern for me as I am switching to a lithium battery but those with lead acid batteries that get this product need to know that as that is too much voltage for a lead acid battery.
R Roberge –
Perfect fit and easy install. Came with a nice owner manual for future reference. Fixed my non charging issue. Looking forward to testing it out even more on an upcoming camping trip.
J. Hargis –
Easy to install and works great. This product was almost an exact fit to my original one. Installed in a 1991 Fleetwood Wilderness. Keeps the batteries fresh and ready.
Snakebite –
If you upgrade your Travel Trailer/RV to Lithium batteries, you might also need to upgrade your on-board Charger/Converter so that it will PROPERLY charge the Lithium batteries. This is a VERY easy way to just that. It is easy-peasy to replace your old unit with this one, and it does a great job. The Lithium batteries will allow you to be without Shore power for a longer period of time. And…. they weight less that half of what the Lead Acid type batteries weight. You can even add a extra battery to what you have and increase your Boon-Dock time even more!