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Hey guys, I can't find clear data for the brands of 100w solar panels I have. I would appreciate your help? How would you best mix up these safely without purchasing limiting diodes? I'm using 4x40A Renogy controllers. Thanks in advance. I don't want my maintenance and spring cleaning to blow...

Diagonal to fuse above, exactly. So I'm worrying about nothing re: a 1.8" difference on a length of less than 15"?

These cables would be neg to neg and pos to pos: the existing cables up to inverter are 1awg (size limit of the growatt). Still OK to he a little under 2" off on this parallel connection?

Hi folks, I am adding a second 200a 24v battery in parallel to my 24v Growatt 3000 (also 200a, both lifepo4, both 200a BMS). My last two 2/0 cables in the house have just under 2" difference in length (12 and almost 14"). And no more lugs to cut and re-crimp. Will even this difference mess...

UPDATE: I read the post twice and understand. 200a it is. Thanks, Steve :)

Thanks Steve, Just so I don't jump to a conclusion: I'm ok with the two 250a fuses, each on a pos terminal, I specced out above then? Or should I spec them for 225, just at little headroom above the max bms each can deliver, since I don't plan to ever deliver close to the 400 both could supply.

Hey Steve, This part confuses me: You offered that "If the battery is 24V/100AH, it should be fused to 200A as the BMS will exceed that for surge" I was thinking of paralleling 2x200a 24v batteries (both have 200a bms). Does that mean you recommend 400a fuses on each battery positive? I...

Thanks for your help!

Do class T fuses need to be ignition rated for solar usage on 24v?

I have two clone-brand batteries a LiTime and a Redodo, both with identical capacity. One is older, and one is within the last month. I understand the chemistries will mimic the lower performer of the two, but if the sum total is still a good percentage of the total amount available despite...

Revisiting an old thread....I'm in the same boat and would like to add a Victron ip22 24v charger to my Growatt. So long as I fuse through a standard fuse block, which will feed to the battery terminals, will I have any other considerations to address? 01 set as SBU, 12 set at 25.6, and 13 set...

Hey all, I'm adding a dc-to-dc charger to my portable solar box. Can I use the cigarette charger for a car inverter, plugged into an ignition-only cigarette lighter port? If so, is wiring the negative of the cigarette charger to the common negative bus of my fuse box, and the positive to the D+...

Thank you everybody, for the thoughtful replies! 'Nothing to lose' is good enough for me!

Can I build a camping system out of an Eco-worthy 100ah and Giandel 600w/1200w inverter, if all the wires are short and over-specced, fused for wire size, or will it kill the battery? For inductive loads like the nuwave induction cooktop on low at 600 W, on a 12 V inverter is going to pull...

OK thanks MisterS, I may consider paralleling a second matching battery BUT in the meantime, the official specs say max charge/discharge are both 30a so a 25a breaker gives me enough headroom for a 20a charger, right?

Dumb question: will two batteries with 25a discharge bms's paired give me overhead to use a 35a or 40a breaker/fuse?

Good plan. I agree. I may have tonchabge my charger though.l Will a 20a breaker trip with a 20a charger?

Should I adda 30a breaker to gatekeep, if I don't expect large loads?

Hi all, my eco-worthy lifepo4 30ah has a BMS with a max charge of 20A, discharge of 25. Does that mean I don't need to fuse to my Giandel 12v inverter? It's rated to 600w & Will says it's a 60A input.

Yes a 12v ecoworthy w/ 100a BMS. I have a 2200w inverter wired in but have capped usage at sub 1000w for that reason. Bulb crates are cheap and plentiful, mine was $5 used and rated at at least 60lbs

It's not milk-crate portable but it"s close! My fourth solar rig, built to be very portable, in a bulb crate: -100a lifepo4 -2200w inverter -USB fast charger -many zip ties :) ...now please, don't ever let me drop it :) I'm sticking with an ANL 150 fuse paired with a 100a bms... For now.

12v

Doh! ANL then....hey can I bolt n ANL on tonsave room or is the metal too flimsy?

Alas they are just in a bucket of lugs I inherited. The darker copper is 2/0, the lighter 1/0. I also have 2 VERY short (4 inches each, plus length of adding lugs) 4/0 cables I could use instead, if they aren't too short. Can you use cables that short from inverter to 300a mega fuse?

It does....which seemed weird so I:m asking

Can I use 1/0 lug on a 2/0 cable so long as it accommodates all the wires and the mechanical crimp is solid?

Add eyelets (M10) to Ampere Time charger? Can I cut alligator clips off and splice an SAE connector, then buy exisitng eyelet clips (or manufacture my own?) so long as I stick with same gauge of wire, or beefier? Thx

Hey all, My oldest batteries, a 4-battery AGM bank (about 4 years old) were using the default Renogy Rover charging pattern and one of them swelled up. I took the bank apart, removed that battery and tested. All of them hold a full charge, as shown by multimeter testing, using an agm-rated...

Thank you for providing a second pair of eyes HRTKD, I think should DIY it too...but am swimming in chores (roof, electrical plumbing and a new solar array)....sometimes you have to go with 'good-enough' prefab, alas.

Hi wise crowd! I want to buy this eco-worthy mount and install it upside down. My plan is to mount the bottom-facing struts against the wall to angle the panels out from my shed wall. Grabbing to compact design eco-worthy panels that are otherwise well withing specs for the weight and useof this...

Giandel made good on a rreplacement and paid to have the faulty unit returned.

Yes I had to strip off more insulation to get the plate to grip well but I got there in the end :)

Has anyone come across this before? My renogy rover li 40a charged my renogy smart lithium 170ah batts to 13.3. I've been waiting to see this because I've been stuck at 13.2 for a couple days and sonput no load on it to see how long it would take. At the end of a couple days waiting, still...

Maybe 8 or 10 of the hundreds of fine strands in one cable didn't play nice. How much heat will that generate? Too much? Is it ok to use a cable if I spudged the dirty (almost) dozen tight around the base of the lug and covered it all with heat shrink? EDIT: Found a good read on crimping on...

Maybe 8 or 10 of the hundreds of fine strands in one cable didn't play nice. How much heat will that generate? Is it ok to use a cable if I spudged then tight around the base of the lug and covered with heat shrink?