diy solar

diy solar

Most reacted posts

  • Post in thread: Best practice for 300kgf ‘fixture’ 280Ah cells

    yes, this is using the different double thickness washers and different deflection criteria to meet the spec.
  • Post in thread: I'm I going to burn down my neighborhood with this or is it good?

    Hmmm...i wonder how we can confirm that....i take it, it would be asking to much for a link to that conversation with the MPP rep?
  • Post in thread: Best practice for 300kgf ‘fixture’ 280Ah cells

    I have no way of working in Psi. My torque wrench goes down to 1Nm and supposedly accurate to 4%(iirc) (it is the 'click kind' and if you go really slow, the click is clear and positive every time). So i was thinking(as an approximation) 300kgf = 29.4Nm divided over 6 rods = 4.9Nm. Now the...
  • Post in thread: JB Weld versus Loctite for grubscrews

    edited...silly thought....lol You can get washers with flat faces top and bottom, which helps keep them aligned.
  • Post in thread: Checking my understanding using remote on/off function?

    On victron inv/chargers & SCC's with the in built 'remote on/off function', am i correct in thinking that i can simply run the live(+ve) output cable (only) from the charge & discharge control relays directly(from a chargery BMS). If my understanding is correct, a chargery BMS will out put 12v...
  • Post in thread: Earth Rod attached to motorhome...any unforseen detrimental effects?

    @mikefitz Thanks mike...that was my thinking. Are you are qualified electrician by any chance? Could you please point me in the direction of the relevant section within the 18th edition regulations, so that i can argue my case with my 'electrical expert' friend. Thanks for your help.... this...
  • Post in thread: Relay/contactor question from a newbie

    Yeah, filterguy, i'm more coming round to your thinking on the subject....think i went down a rabbithole in my reading and created a problem that didnt exist. The only inrush current that does harm, is the battery connect inrush. Thanks for your input.
  • Post in thread: Chargery BMS now with Low Temp Cutoff

    demonstration vid
  • Post in thread: Best practice for 300kgf ‘fixture’ 280Ah cells

  • Post in thread: I'm I going to burn down my neighborhood with this or is it good?

    Ok thanks Gnubie....thats a great flag you have raised for me. Ta
  • Post in thread: More newbie questions ;-)

    @jasonhc73 Thanks Jason, so for the sake of the cost of a second BMS, i would have better control/monitoring if i went 16S2P instead of 2P16S ??? Any problems with the BMS's reading each series string, when ultimately they are paralleled? Would both these series strings still self balance the...
  • Post in thread: Checking Chargery voltage measurements

    @Cal Right Cal, now we are getting somewhere (y) Im presuming the same 40v 3A schottky diode will do for the 24v DC connection? What im trying to ascertain, is, if you have the 24V pack as the only power source, what is the most efficient way of connecting it to the BMS to acheive the greatest...
  • Post in thread: Electrodacus SBMS0 I/O Summary

    Hi Cal, thanks for the input. I'm simply adding it to the charge/discharge relays of my Chargery unit, which in turn is then connected to the remote on/off switching of my victron units. (might use the aux port on the inverter) I already have the Kyotto ssr's, but rather than simply soldering...
  • Post in thread: Why do DC systems not make use of grounding to the same extent as with AC

    Yes thanks Joey, i have seen that with the polarity and surge protections in various vids. I'm assuming the internals of the inverter/chargers handle the 'earthing' requirements between the DC input and AC output, otherwise, how would anyones system work if never connected to grid....the...
  • Post in thread: Question on charging higher capacity cells?

    @smoothJoey Comparing apples with apples, if you compared putting the same 1200w(25A) charge into 4Px100Ah cells and 1x400Ah cell, the charge rate would be the same @ 0.06 C, however, im thinking there would be more resistance on the 4 cell pack due to the connecting bussbars etc. In this...
  • Post in thread: Checking Chargery voltage measurements

    @Chargery Thanks for the link jason, however i believe bob is using a 4s 12V system with a shottky diode, where as i'm looking for info as regards a 24V system without the diode. If all thats needed is a simple 5A fuse on the positive connection, then that would be fine. I had thought i'd read...
  • Post in thread: Charging a Lithium battery with a non-programmable GEL battery controller?

    eh....that one was $289, so perhaps ligit???
  • Post in thread: How to Parallel Balancing. (YEP 99% of us is doing it wrong)(PART#1)

    How do you actually know if the cells are as good as you would like? Some of the CATL ones from china are a very good price and there seems mixed reports....but how does a novice make that judgement? You can pick up four times the capacity of battleborns at similar price, but that doesnt...
  • Post in thread: Rugged solar panel suggestions?

    No recommendation...do your own assessment of these shown below..... https://www.alibaba.com/product-detail/walkable-solar-panel-110w-anti-slippery_62179084828.html?spm=a2700.7724838.normalList.26.21bb61f5j0qfU6
Back
Top