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WF-9855 Series Lead-acid Battery Converter/Charger
Three-stage charging mode for lead-acid batteries.
Increase the voltage of your 12volt lead-acid battery to 13.6V and then reduce the charge power and enter trickle mode. In the trickle state the charger can always keep the battery in the best condition.
Trickle charge
When your lead-acid battery voltage reache 13.6V, the converter lowers the output voltage and goes into trickle mode and maintains the battery charge.
Overcharge protection
Built-in overcharge protection chip and provide the best charging solution for the battery.Increase battery life by 50%.
Short circuit protection
When the wiring is abnormal, the converter automatically cuts the current to protect the RV's battery and wiring.
Silent fan
The fan features an upgraded silent motor, so you won't hear the converter running even if you're resting in the RV.
Compatible with WF-9855 & WF-9855-AD
Make sure your battery is lead-acid before buying. Also suitable for WF-9835 with 35AMP current and WF-9875 with 75AMP current. Different currents only affect the charging speed.
Carolina Gal
2025-09-03 14:48:18
I bought this for my 2011 Forest River Forester 2301. After determining where all the connections were in my RV, not an easy feat as I had to remove the corner mattress to get underneath, the unit itself was easy to hook up and has worked beautifully since its installation.
Customer
2025-07-05 21:25:33
We need this converter immediately for our camper. It came a day early. Easy to install. Works wonderfully. Price was reasonavle and better than many other products.
TexasNational
2025-07-01 16:15:35
Although it was a different brand than original, it was a perfect power match. The size is the exact same and build as well. I had it installed in 15 minutes and the fact that they give you a 4mm t-handle allen wrench was a welcome surprise. I'm not sure why others have said that the fan is too loud. It's no louder than the one I removed. Mine mounts under the fridge in a covered area so I never hear it operate. I appreciate other companies providing quality alternatives to otherwise expensive replacement parts for a good price. I feel like this was actually a good deal and would recommend it to anyone needing such a product. Thank you!
Chris Hughes
2025-05-10 14:33:49
Does a good job changing but fan is a little on the loud side
Dwayne Dockens
2025-03-29 12:17:41
Unit is easily installed and works great. However, the fan kicks on every minute or when lights are turned on. The fan can be heard (very well) throughout a 42’ Heritage Glen fifth wheel. I returned the unit, opting to try another brand before remounting to an outside compartment.
Steve
2025-03-16 14:48:52
You can’t give a credible review with only a few days in possession. I have it connected and its works.
Customer
2025-02-20 15:09:30
The product did not work. I am going to have to return it.
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