I have 20 new tinned braided bus bars for sale. They are 35mm2 - 25mm wide x 100mm between centers. The hole size is M10. You can save half off ordering new by purchasing three or more of them for $10 each. Shipping by flat rate envelope is included at no additional charge.
Or you can order new...
Yes the two 120a BMSs in series will only deliver 120 amps... but with two of those packs paralleled - you get 240 amps at 24v... which delivers 5760 watts. The paralleled 8s packs will only deliver 200 amps at 24v... which is only 4800 watts.
The real question is then whether or not I need the...
I am getting ready to replace my Xantrex 458 2000 watt inverter that I had installed last year in order to upgrade my system to 4000 watts so that I can run my air conditioning with it. I will be selling this hardly used Xantrex 458 inverter (with battery temp sensor and remote panel) for $500...
In a roundabout way - it's getting charged. The new inverter would feed the existing inverter which has a built-in charger that I can turn on when the solar panel doesn't maintain a proper SOC. The motorhome also charges the house batteries when the engine is running. You make a interesting...
Hmm... I know it's only a 5A device - but since I'll be balancing a 24v bank (and I'm not in a particularly big hurry) and I'll have a 24v converter for faster charging - I think I'll be okay with this one. I can definitely see where doing a 12v bank might be painful. ;-)
Greeting all!
I own a Safari Trek motorhome which currently has 50A service and uses a 2000w Xantrex modified sine wave inverter along with two FLA 12v batteries. The inverter feeds one leg of the panel which, with no surprise, does not feed the microwave or single AC unit. 50A service is...
I will be installing 16 270ah cells in my RV as a 24v system. My initial concept was to build two 8-cell 24v batteries and then parallel them. I figured that I'd wind up saving some money on fewer BMSs and less cabling to deal with.
Well I also know that you don't know what you don't know...
Thank you.
Luckily, AC units don't require a constant 1500 watts, as they cycle on an off... and the need for AC declines when the sun goes down. :)
Yes the new system would keep the 12v batts topped off... along with the existing 300w solar panel and charge controller.
Converters would be...
I'm sorry if I wasn't clear.
If I build four 4-cell packs - I will series each pair of packs and then parallel them. The goal either way is 24v.
I can see where maneuvering the smaller packs might be nice since these will be in the lower compartment of my bathroom closet - and the larger...
It seems like a decent compromise of relatively low cost and relatively high quality. The videos that I've seen show a design problem 8 years ago that was quickly corrected. I'm seriously considering stepping up to buy this one.
Here's a non-affiliate link on Amazon...
Actually while the number of BMSs goes up - so does the throughput. 2 x 24v x 100a = 4800w versus 4 x 12v x 120a = 5760w. Hmm... that is something to consider...
My inverter will be the Samlex EVO 4024 - so I think having the extra BMS capacity of using four of them might outweigh the cost.
I really like what you've done, here. It's an ingenious layout - and I'll be happy to mimic what I can.
Looking back - is there anything you might do differently next time?
IIRC - the Riden is the one that has the separate case, right? If so - by the time you get the case you've pretty much spent the same... and still need to assemble the unit. Once again - my memory could be faulty.
It seems like most of the "cheaper" options - when researched - have a lot of...
Yes the weight issue IS an issue... getting them in the RV is one thing - getting the heavier, larger pack into its final destination inside the RV is a little trickier. Ultimately - if it's only about the extra installation effort - then going your route makes sense (and keeping the extra money...
I'm not eliminating my 12v native system, nor the 12v 2000w inverter. The 24v system I'm installing (4000w) will be in addition to the existing system with the intention of removing it in the future when I sell the RV. The new install will simply be acting like a 30a shore power connection.
I stumbled on your post looking for information about the quality and satisfaction of the Magnum inverters... so I can't be much help, I'm afraid. I hope you find a solution to your issue, soon.