![]() For a full battery, the bulk stage has a minimum time requirement of 1 hour, which allows the lithium cells inside the battery the time required to “balance”. The bulk mode stage could last anywhere from 1 to 4 hours based on the battery and load current which is being used. Maximum current to flow as required by the loads. This is accomplished by boosting the output voltage to 14.6VDC and allowing the Second, to ensure the lithium cells inside the battery remain balanced. First, to quickly restore the energy back into the battery. This mode is designed with 2 purposes in mind. 4 hours genny time for 200 Ah when sun is just -offs. Oh, so if bulking > 200 Ah, this may not be the charger for you.good lord, thanks to you guys for getting me to read the dang manual! (Wonder what 13.6V is as % on Li cells? I'm very new to this.) Well, fudge.since I only have a 24' trailer, this sounded like an awesome way to save space! All these inverter/chargers are huge - well, for a regular trailer with little storage space.none of which would give Victron MultiPlus' desired 4" all-around spacing. A whole lot more to rewire, tho.Ĭharge profile is 50A at 14.6V for 1-4 hours then 13.6 for forever ( per their manual here and copied below). This is 8950-MBA and mine is an 8950-PEC model - not sure yet if that matters.Ī whole WFCO Li replacement center is $217 and has a switch for Li or lead acid. Just learned about WFCO Li replacement converters. What are the options to charge with this converter? Can I just attach a DC-DC charger to feed a voltage that the lithium batteries like, or will the microprocessor in the converter reject that? Are newer lithium cells able to charge at 14.4v? Ideally, I would use a converter with a lithium charge profile, but if could be months after I purchase the batteries that I can afford the charger (which is why I initially planned to but it the other way around). As I understand 14.4v will damage a 12v lithium battery pack. I am concerned mostly about the bulk charge. In the manual I don't see any way to change that. The charger on board is a WFCO WF-9855 55 amp charger ( ), the web page says it bulks at 14.4v, absorbs at 13.6 and floats at 13.2. My plan was to install an inverter/charger next, but I am beginning to think that the battery situation is more pressing. My dual RV/Marine 12v batteries can only provide about 41ah of power. WF-9855-AD – 4 3/4 x 4 x 8 3/4 inch/120.7 x 101.6 x 222.With the installation of the the Victron Smartshunt, I discovered that I can run my furnace in my RV for less than 4 hours. Lugs accept 2 AWG to 14 AWG wire lug screws are 5/16″ Allen head Protected by fuse same rated fuse replacement required Shut down and auto recovery upon return to normal load +/-1% accuracy against input or load changesĬurrent-limiting and shut down auto recovery upon return to normal load Extended warranty offer also available when you add to cart and proceed to check out.Īutomatically Controlled by Microprcessorģ3-Stage Intelligent Charge / 2-Stage Intelligent ChargeĪbsorption, Bulk and Storage / Absorption and Bulk Mode Additionally, with multi-stage charging and current monitoring in both lead acid and lithium profiles, battery life will be maximized.Ģ Year WFCO Manufacturer Limited Warranty. RV owners will have the peace of mind that their batteries will be accurately charged, eliminating the risk of over and under charging. This new microprocessor driven technology will recognize lithium ion and lead acid battery chemistries and automatically adjust the charging profile to match the battery type. The WF-9800-AD Series now includes an industry first, Patent Pending Auto-Detect technology.
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