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Your cart is empty.The WF-9800 Series converter/chargers are versatile, advanced power source solutions. The WF-9855 model provides 55 Amps of clean, reliable DC power, which is ideal for powering electronics and appliances. The 9800 Series provides clean power, even without filtering from a battery. Quiet operation is assured as the cooling fan runs only when needed. Another advantage is FCC Class B compliance for the WF-9855 model, which means that the converter does not cause interference with televisions, radios, or other signals. Automatic three-stage battery charging maintains your battery’s life with three nominal voltage output modes: 13.2 VDC range “float” mode, 13.6 VDC range “absorption” mode, and a 14.4 VDC range “bulk” charge mode. Electronic current limiting automatically shuts down the power during overload or short-circuit conditions. Featuring auto detect technology which will recognize lithium ion and lead acid battery chemistries and automatically adjust the charging profile to match the battery type. No more buttons. No more switches.
brian
Reviewed in the United States on January 1, 2025
Had a issue after install, plugged in voltage went straight to 14.6 DC volts with regular acid/lead RV battery.... After searching and watching videos on 9855 unit, found to lower voltage to 13.6 turn off or unplug everything pulling a DC load to unit, voltage dropped to 13.6 in less than 8 hours! Works great! And fairly quiet! Also easy installation.
Claude
Reviewed in Canada on August 21, 2024
Article tels que commandé
Justin Duff
Reviewed in Canada on July 6, 2024
Was exactly what I was looking for
ana
Reviewed in the United States on July 28, 2024
Worked very well on our 2019 Fifth wheeler. Great price and good quality.
Linda Opines
Reviewed in the United States on July 17, 2024
I purchased this to replace the converter in my RV because the fan was noisy and my power was doing flaky things. I originally purchased an off-brand to save 50 bucks but when I installed it and it shorted out as soon as I connected it. So save yourself some time and purchase this one straight off you won't be sorry. It's silent and all of my electrical issues have been solved.
Jesús Mendoza Vázquez
Reviewed in Mexico on May 10, 2024
Buen producto, recomendado
Mark Reyes
Reviewed in the United States on November 10, 2024
Works good so far hope it last longer than the original.
Craig
Reviewed in the United States on October 19, 2024
So far so good, will edit if need be.
Customer
Reviewed in the United States on October 17, 2024
Fit like a glove and replace my original with no issues.
B. S. Spurling
Reviewed in the United States on September 17, 2023
This inverter was just what we needed! When our inverter went out we tried local stores and no one had it in stock. We found this one on Amazon and it was delivered before the stores could get us one and was cheaper to boot. It was easy to install and fixed the problem.
Jeff Spahr
Reviewed in the United States on May 4, 2021
Had a hard time diagnosing the problem at first. The original unit showed 12v DC output when disconnected from the panel. So I couldn’t understand why I had dead coach batteries after 4 days with full hookup to power. I kept looking for parasitic drains all over the coach without success. After some research online, I decided to replace this component and it fixed the problem. Evidently the old unit was still making 12v DC, but at very low amps - not sure how low, but not enough! I did consider upsizing from 55 amps to 65-75 to minimize my needed daily generator hours for charging the batteries while boon docking. Because space is at such a premium (as you can see in the photo) I decided to stay at 55 amps and retrofit all the interior lights to LED (22 in all) to lower the 12v load instead. This new unit was a direct replacement under the bed in my Fleetwood 31N Tioga Ranger. Receptacle plug for 120v AC power, 2 - connector lugs for the 12v DC power and a ground wire. Easy install and it works great. Hope the new one lasts as long as the original. I’m a happy camper now.
Kirk
Reviewed in Canada on June 15, 2018
Product was exactly the same as the old one. Worked as soon as I connected it. Easy to connect ( 3 wires) but was located in an awkward spot in the trailer. Otherwise an easy fix and everything is running normal again.
Dawn Polny
Reviewed in Canada on October 12, 2018
This converter works great! It is much lighter than the one it replaced which made it so much easier to install. The fact that it can be placed in any position was also a huge bonus. Delivery was quick and seller promptly answered me when I had a question. Highly recommend this product and this seller!
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