Most reacted threads

Well, not mine, but those of op Main Sail, a frequent poster over at Cruisers Forum in LFP and also at the Marinehowto. com site. Very glad to hear he's on the mend! Essentially 400ah of Winston prismatics, still pulling full capacity after 13 years and more than 2300+ cycles. Essentially low...

All LFP is the same right? No, and not knowing the difference can lead to disappointment, or even cell abuse. I'll go so far as to say that @Will Prowse teardown of Miady battery demonstrates this, amongst other things reserved for comment later. I thank Will for his teardowns, so not a...

Just a suggestion: Baseline your setup, especially a diy setup with a handheld IR thermometer. A rather spirited discussion about cleaning terminals for LFP diy batts reminded me of something else I do with DIY. BASELINE. In another life, I was fond of totally hammering pure-lead batteries...

Who this is for: Battery nerds that have top-balancing gear and maybe some spare similar cells. I'm one of them that has done this. What this is NOT: Not an anti-bms campaign. You are going to be using an external fuse and an LVD like a Victron or similar. Not promoting unsafe operating...

I thought this might help those who might have a generic conventional agm and wish they had a tech-manual for it. While this pdf file is specific to PowerSonic, their guidelines are much in line with most everything else out there, but of course if you have a manufacturer's specific manual...

I did a bizarre search - to see if there was a song about batteries. Crazy right? I forgot about an 80's Heavy Metal / Thrash rock from Metallica's "Master of Puppets" album and there it was "Battery". But then, something I've never seen before was a cover by "Apocalyptica". WOW. Freaked me...

A somewhat laughable (expensive) story of my early-adopter mis-information woes. Or read as "What NOT to do!" Early on, when the only cells we could get in any large capacity to drive DIY EV's and other hobbiest stuff, there seemed to be some confusion about LFP vs Non-LFP charging procedures...

As promised to another I picked up a so-called Gel/AGM hybrid with a clear top so I could check things out with testing. I'm used to higher-end types like Mk/Deka Gels for standby, so I was intrigued. My whole interest was piqued by seeing AGM like CV voltages being used on these things, when...

Got this a few years ago and see it's still on Amazon.. Innovators in Battery Technology - Profiles of 93 Influential Electrochemists author: Kevin Desmond The book describes 93 battery-freaks just like us. :) From 270 years ago to modern day. It isn't a perfectly chronological history, nor...

Unreal. Love the enthusiasm! Sad that I'm thinking to keep this in the back of my mind when we all go Mad-Max.

My Genasun GV-10 lithium for typically small-scale 4S 14.2v lfp batts arrived! This is more about being impressed upon arrival. I'll put it online tomorrow when I have more sunlight. The small things that impress me when doing OOB 1) Arrived with a tamper-proof box sticker, helping assure me...

In other threads, we've gotten to talking about how much time is spent in the upper knee of charge over the lifetime of a bank. That is, anything above about 3.45v But most of us (myself included) don't keep track of that time. I wonder if that would make an excellent DIY project for a bank...

Just wanted to introduce myself to the group. I loved Will's teardowns and testing videos and finally thought I'd join in. I started out with LifePo4 about a decade or more ago building up from very expensive motorcycle starting LFP's and caught the bug. Moved up to prismatics and did the...

Using a wheelchair and wanting to convert to LifeP04, or get the best out of your AGM/Gel? Look into the site run by a paraplegic engineer, (Burgerman) who has a forum and done plenty of conversions. Please note that there are NO SALES on custom chairs, battery builds etc. Many of the users...

So we all know - on paper - that LiFeP04 needs no "break in" time. Or DO you? (dramatic license) Hint: corner-case issue. This misconception is usually carried over from the old days when lead-acid actually improved in capacity for the first 5-10 cycles or so as the charge/discharge etched...

Even though intended for motorcycle LFP at-rest SOC voltage measurements, I use this often, even moreso than my Fluke multimeter and wall-charts with other 4S nominal 12v banks when lab-accuracy is not vital: Tecmate-Optimate TS-271 SOC meter...

TL;DR - have you gone to the source to see if LFP manufacturing costs actually justify the price, nevermind performance or cost-per-cycle salesmanship? Being an early adopter of LFP, I paid what I thought was "early adopter" prices. Prices didn't really fall much over intervening years as much...

Have I been living under a rock all these years? How many SCC's have a bms-wakeup feature? Ok, so this Expert Power CC is a small pwm type (although they have mppt as well) - with apparently scant specs other than what is reported by an Amazon reviewer as a bizarre pulsing action instead of a...

While tooling around Amazon, I took a peek at the Ampere Time AC chargers and their specs. Their 10 and 20 amp charger are mostly targeted to nominal 12v / 4S LifeP04 owners, yet at the same time, a selling point is that they are: Compatibility: Support Charging Multi-Chemistry Battery Types...

Without going into an endless discussion of AA nimh's available, I thought I'd expand a little about the name itself - Eneloop. After all this is a solar forum - we'll get to that. Where did the name Eneloop come from? It stands for "Energy Loop". So nimh is not new. Prior to Eneloops...