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Looking for something like Will's 400w classic plus alternator for my Promaster 2500 diesel van conversion. One thing I'd like to add is a shore power battery charging and power option. Suggestions? All-in-One? Currently considering a 12v heat pump, and perhaps a 12v converted hot water heater...

I have TWO dead 48v13ah eBike batteries. It occurred to me that I could take the cells and make a battery to run my 12v Diesel air heater. Is there a recommended BMS and perhaps a case for this?

Is it advisable to put the all in one inverter horizontally in the server rack?

In Looking for a good 24v high ah battery, and someone had suggested Seplos DIY. I had built a 3.6KW-h with 8 cells from battery evo and some chinese BMS - it worked well. I appears one buys the KIT from AliExpress (or Seplos), and the cells locally. I'm thinking of 304ah, as I'm pretty sure I...

I am looking for a 230ah 24v battery and the LI Time keeps coming up - and nothing else. It does not have, according to Ricekt of their company, low temp charing cutoff. Has anyone figured out some sort of "heating blanket frost protection" for LiFePO4 batteries? Or, alternatively, a suggestion...

I'm looking to add over 6KW-h of 24 volt storage for a van build. I saw some Battery EVO Golf Cart batteries which looked promising size and price wise. Are there any special considerations for using a golf cart battery versus a server rack battery?

I am looking to install a 12vDC mini-split (treeligo or similar) onto the back cargo door of a Promaster Ram. Draw is rated at 30-70amps. The battery would be located about 10ft away (not as the crow flies). I am guessing this would be about 4guage - haven't looked it up precisely. Is there a...

I just purchased a van and wish to run the wiring first, before insulating, etc. I think I'll use glue on guides to center the wires, then cover with spray foam. That being said - does anyone have a favorite 14guage 2 wire, and favorite crimp ends? I'm thinking to use blade style to prewire...

I'm considering another van build and wonder if I might run 48volt lines to different locations, such as to a diesel parking heater or heat pump, then put a 48v to 12v converter (sized correctly for wattage)?

Any thoughts on which might be the current 'sweet spot' for a mobile All in One, 110v, single phase, 3000w, to handle less than 2kw PV? I've used the Growatt 3000 for two years and it was good. Occasionally I would disagree with the Growatt's choice not to charge the LiFePO4 when on shore...

Last time I built a system it was a success, but I would like to do it better w/ a new build. Last time I bought 2 sets of 4 150ah cells (Battery Evo LiFeP04 - used) and made a 24v system (3,6kwh?) w/ a Growatt 3000 and 1740w of pv panels. I installed a 60amp BMS from China which worked great...

Hello helpful people! I just sold my DIY solar camper after 2 years. You guys were great in helping me design and execute that. 1740 solar on roof, 3000 Growatt, 24v150ah LifFePO4, 12k btuh heat pump. That system ran the A/C and fridge almost 24/7 for the two years. So - I'm coming back to the...

I have a used Rydbatt Rydelec 13S3P 48v ebike battery. I tested it here: It "acts" like it might have a weak cell, as I would ride the 750w ebike and the remaining charge would drop on the indicator, then, upon a slight rest, return to full charge. With inline fuse and BMS. Looking for a...

Last September or October, I installed a 12k btu heat pump in my 23ft shuttlebus-converted-to-mobile-home and my system ran pretty well 24/7 here in SWFL. I was able -to maintain 75-85 despite the full florida heat and humidity and running the small (200w) refrigerator/freezer. Lately, however...

I have noticed that when I connect to shore power to grow out 3000 will fully charge to 100% on the 24 V lithium batteries. However, from that point the charging it seems to drop fairly low unless I disconnect the battery and reconnect it. I’ve seen some discussion about the floating voltage and...

I have a shuttlebus which I am converting to a motorhome here in sunny FLA.. Presently, there is 1,720w of (4x435w) panels on the roof with a Growatt 3000, 3.6kw of diy battery(24v@150ah), and a pioneer 12k heat pump. Is there any sense in putting an Ethereum (or other) mining computer onboard...

I'm getting ready to mount some SunPower 435W recycled panels to my shuttlebus roof. I have sunk rivet nuts into the ribs of the bus roof and mounted brackets. Painted unistrut will be mounted to that and then the panels, secured with Amazon end and mid panel hardware affixed with the steel...

I'm getting ready to install a roof mounted pv panel rack on my shuttlebus. I recently saw someone (YT) mount brackets by drilling and tapping through the roof into the bus' ribs. I'm considering the same, i.e. to mount 5' segments of strut transversely across the buss, then 10' struts...

To charge a 24v house battery from the vehicle alternator, is it okay to use a "dc buck booster" to take the output from a "normal" dc to dc charger and boost it to 24v, or to find some sort of all in one option?

Looking for recommendations for clamps to fasten PV panels to a bus roof mounted piece of uni-strut. I REALLY like IronRidge's UFO, or the Tamarack Solar 50/50, but can't see spending $250 JUST FOR SHIPPING to get one of their systems. So - guess I'm doomed to UniStrut, a product I love to hate...

Sorry for the pun. I've read and re-read FilterGuy's very informative resource on grounding: https://diysolarforum.com/resources/grounding-made-simpler-part-4-mobile-systems.159/reviews I think that the Growatt 3000 is an example of the "inverter charger" in section 4 of the referenced...

HI - I'm hoping someone might have a link to a schematic suggesting fusing/circuit breaking locations for a mobile home setup with solar. I've tried searching the forums and and have seen some guidelines but cannot seem to find those again :( Here is my guess at the start of this; however...

Hi - I'm looking for something to indicate the remaining capacity levels for both my house and by bus batteries (24 and 12v respectively) Thanks for your thougts!

I’m doing an initial charge. I have a 24 V DIY battery. the Growatt all in one is set to the AGM battery type. In looking to change the Growatt battery type, when I attempt to set it to lithium it is not happy. I get a fault code LED. The Growatt instructions specify for the Li battery type that...

I've got 2 sets of 4cells each coming from BatteryEvo with a goal of making an 8s 24v battery. Supposedly, each 12v group (4 cells) are "triple checked". I have a low power LiFeP04/Lead Acid charger (https://www.amazon.com/gp/product/B07MCTXFC7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1)...

My used 12v 150a batteries are enroute from B-Evo. I've ordered the LLT BMS. The Growatt 3000 is on it's way. Seeing Will's deal about the $20 Active Balancer (and the confusing sequel) - I idly wondered if I might be able to make one or two 12 connections mid-way on the 8s LiFePO4 24v...

I've ordered 2 "used 12v 150ah" batteries from Battery Evo, which come with the plate style bus setup. No BMS is included and it seems that Battery EVO's website doesn't list a 24vdc BMS on its own, as it does for a 12v BMS. BTW - the plan is to run those with the 24v/3kw Growatt 3000t-LVM. I...

I'm considering mounting 100W solar panels using VHB tape to the fibreglass roof of my shuttlebus. We also want to paint the roof. Will's method is to stick the panels to the stand-offs, then mount the standoffs to the roof, and that makes sense as things should align well. IF I paint the...

I'm considering a Growatt 3000T LVM (not quite sure what all the letters designate) for my Shuttle Bus conversion. For me, the "big target" is running AC. I hear that 500W, or 2.4 to 3+ KW daily power load for a 9k mini-split is about normal in a hot climate. I live in a hot climate, and am...

I'm looking at getting a (used) 10KW 24v battery plus BMS. My thought is to pair that with an either 3 or 6K Growatt, and about 1K of solar. Plan to visit both parks with electric and areas without. Plan a mini-split and a small HW heater. Am I crazy? Well, different question - what are pros...

I just watched a video in which Will Prouse measured output from various panels using a depleted 12V battery and a Victron Solar Charge Controller apparently hooked up via BlueTooth to this phone. I believe I can measure "open circuit" voltage easily enough w/ a DC multimeter, but now that I...