Most reacted threads

Hi All, The BMPro BMS in my van is not lithium ready, so the BMPro shunt that integrates with it that I bought back when I had an AGM is no longer accurate for tracking SOC of my new lithium battery. I was about to buy the Victron 500A SmartShunt, however before doing so though I just wanted...

Hi All, I have a Renogy 3000W inverter/charger and 40A Epever MPPT solar charge controller which were purchased for a project that didn't go ahead. The MPPT is 12 or 24v, however I the Renogy is 12v only. I was wondering if there were any regulations in Australia which might prevent me from...

Hi All, I have a Renogy charger/inverter and a 300Ah LFP battery I am wanting to setup in my shed to power my always on computers. Idea being overnight the computers are powered from the battery and then during the day I'll use a smart plug to turn on the AC feed to the Renogy while my house...

Hi All, Hooked a 50% discharged 300Ah LFP battery to my Renogy 3000W inverter/charger the other day to see how it handled the job. Both battery and Renogy are sitting on the floor of my study with no obstructions, ambient temperature is around 20c. After charging at the full 75A for about 30...

Hi All, I've built myself 2 x 4S batteries using CATL 302Ah cells using a JK-B2A8S20P BMS each. Could have built a single 4S2P, however as this is going in my caravan I like having the redundancy. I have built the batteries as a mirror config of the other so the end + posts at one end and -...

Hi All, Have dabbled in electronics over the years, however only just beginning to deal with serious current now that I am looking to do an uplift on my vans electrics. I suspect like many newbies I purchased this basic bimetallic breaker (in my case a 200A version) with the intent for it to...

Hi All, Picked up some Silkaflex 522 as it looked about the best option at my local hardware shop for sticking my new solar panels to the roof of my van (solar panels 1480mm X 670mm @ 12kg each). Since had a discussion where I was told I absolutely want to use the Silkaflex 291. I looked up the...

Hi All, I purchased a 120Ah 12v LiFePO4 battery which specified a maximum continuous discharge of 150A as I have a 2000W inverter connected which needs occasional, short term heavy draw. I've put a 120A fuse on the battery which to my understanding means the maximum discharge C-rate is 1. I've...

Hi All, Using a 40A SRNE MPPT in my van to charge 2 x 100Ah lithium batteries in parallel. The default lithium profile seemed a bit aggressive to me with boost and float set to 14.4v and voltage charge limit and voltage cutoff set to 15v and 16v respectively. Using this profile I charged my...

Hi All, Have watched a load of DIY battery build videos. I think I'll mostly be ok with that, what I find a bit daunting is finding a reputable place to purchase the goods. Being in Australia I've not been able to find any local suppliers without massive mark up prices. We call it the Australia...

Hi All, Building a couple of CATL 302Ah 4 cell batteries at the moment. I'll have the BMS mounted to the side and they'll end up going direct into a standard battery box with a layer of rubber lining on the bottom. Once in place I don't anticipate opening these battery boxes a lot, however I...

Looking to replace my single battery with a couple of 100Ah LiFePO4 batteries in parallel. Have seen a few reviews of the Eco-worthy 100Ah batteries showing capacity wise they are as advertised. No bells and whistles on them, but seem to be otherwise pretty good value for money if you don't...

Hi All, I have a 15A shore power charger in my caravan (max output voltage 14.4v) and am just about to upgrade my battery bank to 2 x 300Ah 12v batteries. I have solar and DC DC charge sources sorted and I'm now wanting to boost my shore power charge capacity. I've just got myself a basic 3...

Hi All, I've been thinking of upgrading to 2 x 100Ah Renogy batteries in parallel. These are not the SMART versions as from what I can tell the biggest advantage of the SMART batteries would be the 4000 rated cycle life and the RJ45 port to support systems integration using the RS485 Protocol...

Howdy, Just wondering if anyone knew where I could find a formula or online calculator, etc, to help me calculator potential production losses in my portable panels from their angle relative to the sun? The panels are meant to be perpendicular to the sun, but how do I calculate potential loss...

Hi All, I recently bought a couple of basic Eco Worthy 12v 100Ah liFePO4 batteries which seem to checkout on a straightforward capacity test. Just wondering what the best way is to test the internal resistance of these batteries where I can't get access to the cells directly? Is using a...

Hey All, Feel like this might be a daft question, but can't seem to find the answer to it anywhere (further evidence of it being daft), so here goes. Currently have 2 x 100Ah LiFePO4 batteries in parallel and will likely be getting a 3rd in the short to medium term for my van. I've set myself...

Hi All, I have a BMPro J35B BMS in my caravan which does not have a Lithium charge profile. To replace it with the model that does have a lithium charge profile would cost me over $1000AUD. I have checked the manual for the J35B and there is no mention of higher voltage desulphation or...