diy solar

diy solar

Recent content by Rocketman

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    Smoking battery -literally “Up in Smoke”

    My brother needed a new battery for his side x side. He bought a Bosch Lithium battery group 20 size. It was working great until it just died and got very hot and was smoking (venting?). I figured I would pass along the photos. Only used it a few times. Lucky he was only three miles from...
  2. R

    Half price electric cars

    My brother has had three EV’s - and loves them! The first two were Nisson Leaf’s. He got them cheap for his kids to have a car during teen years - no gas expense and the teenagers did not need massive ranges- they could go all over the area. Being used they were cheap! Think disposable for...
  3. R

    Designing a Solar system for mini Houseboat

    one item I forgot to mention- because Victron inverters have lots of adjustments in the settings, they do need programmed. There are a couple of options for programming… 1. Some vendors will program to your specs. 2. With a Cerbo connected to the internet, you can download the settings, change...
  4. R

    Designing a Solar system for mini Houseboat

    I sent you a couple of conversations…
  5. R

    Designing a Solar system for mini Houseboat

    1. The solar diagram is correct- it is 2s2p (not 2c2p) it stands for 2 in series (the left side of the diagram) and 2in parallel (the left and right side together). 2. You do not need to fuse panels that have less than three in parallel. Three in parallel or more REQUIRES a fuse in each...
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    Designing a Solar system for mini Houseboat

    Realize that I am a Victron Fan. So here is what I would do. The cost difference between a Multiplus 2000w inverter and a 3000w is not much, because of that, I would use a 3000. Here is what I would do and use and the upgrade path I would use. Install one 8D sized 48v 100ah battery- install...
  7. R

    DIY Bus Bars from copper bar

    I used 1/4” x 1” tin plated copper from online metals. https://www.onlinemetals.com/en/buy/copper/0-25-x-1-copper-full-round-edge-110-h02-tinned/pid/23802 I have eight 272ah cells in 2p4s setup, so my bars span between 2 and 4 cells. It is in my MotorHome. I have not had any issues with my...
  8. R

    Upgrading RV solar, mismatched panels?

    Leann, it is best to start a new thread, rather than add-on - different conversations gets confusing. So let’s me make sure I understand your plan - I think you typed it a bit incorrectly. Your 2 100w panels need to be wired in parallel. In parallel amps add and you use the lowest volts -...
  9. R

    Designing a Solar system for mini Houseboat

    The wiring of the big solar panels through the Solar charge controller depends on the system voltage (battery voltage). I know Victron is expensive, there are some other brands that are cheaper or other architectures (all-in-ones) that can be cheaper too. Are you still going 48v?
  10. R

    Designing a Solar system for mini Houseboat

    For batteries- these are the essential features- in my opinion… ( and why) 1. Bluetooth (or another way to connect to the bms). You need to know if the battery cells are getting out of balance- so you can adjust settings to fix it. 2. Low temp cutoff. The bms MUST prevent low temp charging- I...
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    Designing a Solar system for mini Houseboat

    Batteries will be a bit of an issue into your space. It is too small for any of the rack mount batteries. I did find some 48v 100ah batteries that you could get two of these into the space. I did find some 24v batteries (200ah) that you could get two of those batteries into the space (Both of...
  12. R

    Rookie looking to convert to lithium 12 volt

    A few other items… I have a 2000 Monaco, so I am somewhat familiar with rigs of this age. Issues to solve: 1. The converter will pump out a straight approx 13.8 to 13.9v as long as it has 110v power. If you never plug into 120v that can work. (Just charges off generator slowly). You just need...
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    Designing a Solar system for mini Houseboat

    Ok, on the air conditioner you will probably (definitely) need an EZ start to lower the 120v amp draw. I used Micro Air EZ start it dropped the actual startup amps on my Air Conditioners from 27.4 amps to 15.3amps and 27.9amps to 16.5 amps. Much easier on the inverter. For Equipment I use and...
  14. R

    Rookie looking to convert to lithium 12 volt

    Is that a MotorHome? Assume so… One issue to solve- or it may have been designed in and it’s ok??? That is the alternator charging… There are two issues to make sure you are ok. 1. After camping and the battery is low - you startup to go home. The alternator could be running flat out and...
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    Mixing solar panels: stats close enough?

    Just wanted to make sure… In going series into your. AIO - you verified that you will not input too many volts - used the Voc for that calculation and left room for the panels to get cold and their voltage to rise…
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