Most reacted threads

I'm building 12v 300A/h battery that will be installed in a 4wd canopy and I'd like to have a good fuse to protect against a catastrophic failure in the system. Looking at installing a Class-T fuse and most are in excess of $70 AUD (fuse only) I've just discovered that Renogy have their own...

This is a case of being a noob and not paying proper attention to what I was doing :( I'm gathering equipment to build a all in one solar generator (battery, inverter, DC to DC and AC charger) I just received the last component which was a DC-DC charger with inbuilt MPPT solar. Before the sun...

G'day DIY brains trust. Long story short, I have a 135Ah - 12 V battery consisting of 32 33140 cells in a 4S8P configuration. The original battery had shorted and fried the BMS. I was removing the pack from the battery enclosure and in the process I manage to unfortunately tear the bottom...

I'm considering purchasing a 3D printer (Creality Ender-3 V3 SE) and using it to print (amongst other things) parts for my solar builds. The first project that has driven this idea is for a custom bus bar incorporating ANL fuses. The file can be viewed here: Thingiverse Fuseholder for 5x40...

I've been quoted 83-85USD (before shipping) from China for EVE 304AH Grade A cells. This seems like very attractive prices compared to what I have seen in the spreadsheet posted here some time ago. I am building just one 12v battery at this point in time and this order is my set of the system...

Just a sanity check. I assume that it's better to use all three terminals and smaller gauge cable rather than just one big 95mm2 cable (300amp JK BMS) I presuming that it's better to spread the load across all terminals.

I'm building a simple 12v battery for a DIY toolbox power station. I've ordered 4 x EVE LF304 cells and I've also ordered a 300A BMS JK-B2A8S30P The planned configuration is a simple 4S1P which will give me 12.8v and 304A however I've only just realised by reading the specs (attached below)...

G'day gang, 1st post on the forums. Looking forward to taking part and hopefully contributing to the solar community ☀️ I'm based in Melbourne Australia and despite it being known as the sunny country, here on the Eastern Coast it's been more rain and floods this summer which debatably beats...

I'd like to install a Class T fuse into my yet to be built 12v 310A power station. The reason for the choosing a Class T fuse is to protect against a catastrophic direct short where there could be in excess of 10k Amps (happy to be corrected here) Now given that Class T fuses aren't cheap ($80...

Has anyone used a flexible 400 amp busbar like this in their setups? I particularly like that it eliminates the need for terminals and that it is slim and can be bent to fit small spaces as opposed to using thick 95mm2 cable. Link to data sheet

Has anyone used a flexible 400 amp busbar like this in their setups? I particularly like that it eliminates the need for terminals and that it is slim and can be bent to fit small spaces as opposed to using thick 95mm2 cable. Link to data sheet

Hi brains trust - I'm considering a DIY battery build using cells purchased from Alibaba. I've noticed that on some listings you Start order request and the site offers an initial price with shipping to be negotiated with the seller. However on some other listings you simply Start order and...

Looking to spot weld nickel plate to connect these batteries as illustrated. This will be my 1st time spot welding (I will DIY build a welder) I'm seeking advice on what thickness nickel plate to purchase given the high amperage of this pack (135Ah) also, I'm assuming the thicker the plate, a...

I have a small Ammo case battery build which contains a 18a/h lithium motor cycle battery that needs charging while I’m out camping. If I connect it in parallel via Anderson plug to my larger 310a battery will it charge?

I regularly see 100, 120, 150, 200, 300A/h etc batteries in the marketplace but given 280A/h cells are relatively common, you rarely see them as pre-built versions. Can anyone explain why?

Unfortunately the last battery I built (12v EVE 304 A/h) was stolen from my vehicle (along with a bunch of gear 🤬) so I'm looking to replace them. I've been offered what I believe to be a good price for Hithium 314ah 3.2v LFP Prismatic A Grade cells ($52USD from Libby at Docan) Are these...

At this moment I'll keep the supplier anonymous but what risk/liability/benefit would be involved with mislabeling lithium cells as "acrylic decorations" and declaring NO to dangerous goods - Would it be to save on shipping fees? The consignment note attached is for the last leg of the journey...

My first battery build was using the double threaded EVE cell which I think I preferred as there was more flat surface area to make good contact. The single post version I have this time seems to have a very small surface area to make a solid connection. I'd like to attached a double MRBF fuse...

All cells are 3.2v 32 Batteries total 4 x 8 Aren't they all just connected in series?

I’ve just installed a Renogy DCC50S charger into a tool box power station build and I’m wanting to go away for a couple of days camping. At the moment I only have passive ventilation behind the charger where I will be installing fans shortly. Would it be considered safe to use the charger at...