4 new Himassi Lifepo smart bluetooth 12v100ah batteries and testing - simple observations.

[cs1234]

Anymore info on the balancing or balancer itself?

Still not getting much sunlight here. It has been keeping them at relatively the same voltage though. I'm not sending it back to amazon, if that counts for anything.

 

[Mickie]

Still not getting much sunlight here. It has been keeping them at relatively the same voltage though. I'm not sending it back to amazon, if that counts for anything.

Ok well thats a positive. I might be getting mine tomorrow so ill see.

 

[Mickie]

Hot the battery balancer today. Will hook it up and see how well it works tomorrow.

 

[cs1234]

I'm liking the 4 port with led display one. My poor mismatching 24v lifepo4 bank is actually close on charge level between the series batteries for the first time. They have bluetooth monitoring and the individual cells are actually close together after multiple charge / discharge cycles being connected to this balancer over the past few days. Previously they were always way out there in la la land.

I've got another couple batteries coming in soon and I'll throw them on the other two leads and see how it does with four.

 

[Mickie]

Light B was blinking when i connected them then when i took another look there were no blinking lights and now the battries are within 10 mA of each other so i guess they are balanced.

 

[Mickie]

Battries full charged today and i can see the balancer working it was off for most of the day until thee battries were fully charged now its balancing because 2 of the battries are more than 20mV higher than the others.

2hile writing this message it stopped. The wires are cool and the device itself is very cool. I would t have known it was working if it wasnt for the light.

 

[D71]

I noticed these batteries per blue tooth dropped 27% from an indicated 100% SOC = 73% while running my refrigerator for just ~12 hours

my refrigerator uses a measured 1.77kw in a 24 hour period as defined by

P3 P4400 Kill A Watt Electricity Usage Monitor …. previously tested with grid power.​

My inverter is the MPP SOLAR 3048 The 3048 is a greedy little pig. Oink oink oink… it used 5-6% of the batteries just by itself in less then a 10 hr period. Oink oink oink​

What are you guys getting from you systems? Any idea how much your inverters are drawing in a 10 hour period with no load by battery percent? Any measured metrics?

.

 

[Mickie]

I noticed these batteries per blue tooth dropped 27% from an indicated 100% SOC = 73% while running my refrigerator for just ~12 hours

my refrigerator uses a measured 1.77kw in a 24 hour period as defined by

P3 P4400 Kill A Watt Electricity Usage Monitor …. previously tested with grid power.​

My inverter is the MPP SOLAR 3048 The 3048 is a greedy little pig. Oink oink oink… it used 5-6% of the batteries just by itself in less then a 10 hr period. Oink oink oink​

What are you guys getting from you systems? Any idea how much your inverters are drawing in a 10 hour period with no load by battery percent? Any measured metrics?

.

I havent tested that. But my giandel 3000w 24v uses 28.8w per hour

 

[D71]

I havent tested that. But my giandel 3000w 24v uses 28.8w per hour

I think it - MPP Solar 3048 consumes a lot of power…. 3000w 48v 120vac inverter. Hmmm
I skimmed through the manual and there is an equalizer stated built in it. Not sure how it would work with 4each 12v batteries in series. I think it stated for lead acid or agm batteries with that feature so … again just skimmed it.

 

[D71]

edit added …. I am currently at 60% SOC with about 6 more hours to complete a 24hr run. The system has used a reported 40% of the batteries to just run my refirgerator and the inverter for 18 hours.

Here I scanned it. This is not for lifepo the equalizer in my inverter is for lead acid

 

[cs1234]

edit added …. I am currently at 60% SOC with about 6 more hours to complete a 24hr run. The system has used a reported 40% of the batteries to just run my refirgerator and the inverter for 18 hours.

Here I scanned it. This is not for lifepo the equalizer in my inverter is for lead acid

We were talking about battery balancers to balance 12v batteries in series. Equalizing is something completely different.

"Equalizing charge is overcharging a flooded lead acid battery to counter sulfation and stratification. Sulfation is the process of accumulation of sulfate crystals at the lead plates when the battery is constantly undercharged."

 

[D71]

We were talking about battery balancers to balance 12v batteries in series. Equalizing is something completely different.

"Equalizing charge is overcharging a flooded lead acid battery to counter sulfation and stratification. Sulfation is the process of accumulation of sulfate crystals at the lead plates when the battery is constantly undercharged."

Since we are using lifepo doubt the plates will sulfate. I have been wrong before. ?

Can read that if you check the attached scanned documentation.

How ever if you watch a video by Will Prowse he does discuss active balancers. Not sure where it is. Will Prowse doesn’t really advise to use them.

Btw: We use to desulfate locomotive batteries - lead acid with pulsed dc when reconditioning them. My automotive smart charger does a feature similar to that. Different battery chemistry.

 

[cs1234]

@D71

Correct, don't "equalize" the lifepo.

 

[D71]

@D71

Correct, don't "equalize" the lifepo.

Don’t float charge them either. Although hmmmm did read if you are drawing a load…. Naww haha lifepo are relatively new to me. Had a lithium cr123a battery blow up in a weapon light. I swore off lithium batteries ….. it blew holes through the light casing and burned my hand. I do not like regular lithium batteries why won’t own an EV until the chemistry changes no more run aways.

 

[D71]

Well it took 55% of my batteries from a 100% SOC to power my refrigerator and 3048 inverter for 24 hours. Batteries are showing 45% charge remaining….. so for

$1069 for 4 each Himassi bt batteries
$540 for MPP Solar 3048 inverter
~$100 for fuses, wire, and breakers
~$170 for 48v charger optional if hook grid up or use solar Instead of this purchase. Originally was going with toroidal transformer - inverter.

~$1879 can get reliable 24 hr run for my refrigerator and adding the solar related and other things like cabinet bumps the prices up considerably. This is why ppl just use gas generators. But the relative silence and peace was nice and once hooked up to solar will be even better if sun does it’s part ??

the inverter is an oink oink oink.

 

[kenden]

I have had pretty good luck with the batteries on my Ryobi ZTR mower. I am not fond of the phone app. I have to disconnect and reconnect to get any changes in the battery monitoring. Have any of you found this to be true for you too?