PowMr 100ah 12.8 LIFePO4

67HR · Senior Member

PowMr 100ah 12.8 LIFePO4

Radar · Guru

These LiFeOp4 batteries are really starting to push the lead acid deep cycle batteries off the market.

I am certainly impressed with my Jaycar 120 ah LiFeOp4 battery we purchased on special back in March last year.

Time will only tell how long it last, if it goes past the 5 year mark, I will be excited.

Scubadoo · Veteran Member

Well done. biggrin

Treat your battery well and it should last a long time.

Our 300Ah LiFePO4 battery has survived 11 years of full-time travelling and counting.

valiant81 · Guru

Hi all; I too have upgraded from 2 x 220 Ah agm batteries in our caravan that only lasted around 4 years. Cost the earth when new. I Now upgraded to lithium ( 1 x 300 Ah 12 volt battery ) besides the weight saveing, this battery has really supprized me after free camping in Tassie for over 2 weeks. Besides running the caravan and 2 x 40 liter compressor fridges i have found that over night i have only used around 20 % of the batteries capacity and fully recharged by around 11 Am. So far so good.

TimTim · Guru

Lucky the guy didn't become a dentist or surgeon. There are easier ways to take the cases apart without so much damage smile

LiFePO4 batteries are dropping in price in some instances but some companies raise their prices as they become more popular. VoltX is an example. There are still some cheap batteries around but like yourself if anyone is thinking of buying them do a search of the video tear down and capacity test.

I did like the fact that they use a JBD BMS. Having little or no difference in cell voltages as you charge is quite normal, unless there is a poor connection somewhere. However, when the SOC charge reaches what we call the knee it generally after that point that the differences in cell voltages appear. In this case 6mV is nothing and all the cells appear to have a similar resistance.

Hope it all works out for you.

67HR · Senior Member

Thanks Tim, and others who responded.

I took a bit of a gamble but looks like I may have jagged a half decent one.

As I've mentioned before it's to run my fridge via the battery box, but if the 2yo AGM in the van dies I'd be happy to use one of these.

PS: loved your dental surgeon quote, I did note he had minimal tools at his disposal.....

-- Edited by 67HR on Friday 17th of January 2025 03:48:56 PM

67HR · Senior Member

I've just completed another test on this battery after getting a full charge into it (via dc-dc while driving), I set up the fridge again and the result after 36 hours is shown below. To borrow a quote from Allan Millward " I'm well pleased "