DJLBERMPW, 12V 100AH LiFePO4: $259.00 + free shiping on Amazon ($0.196 per Wh) **Now $168**

[CaptLadd]

 

[CaptLadd]

They claim the battery contains 8 of these in a 2p4s configuration.

 

[sirslayer]

That explain its light weight, I’m still using them heavily every night 3 months later and Interesting the min voltage shut off is at around 10.2 and the max shut off is just at 14 volts , at times it varies but it’s the average I can observe

 

[sirslayer]

Well, the batteries were only special again at Amazon and bought a few more and they are a good buy and I’m impress with the batteries . The print on the battery is a bit different. I’ve done an unofficial few test on them . Just out of the box, volts at 13.04 on all the batteries and weight is over 20lbs. I believe a depth of 4 in series with each series x 4 in parallel is 16 batteries is the total to can use in a battery bank. Here is a few pictures.

 

[Supervstech]

Well, the batteries were only special again at Amazon and bought a few more and they are a good buy and I’m impress with the batteries . The print on the battery is a bit different. I’ve done an unofficial few test on them . Just out of the box, volts at 13.04 on all the batteries and weight is over 20lbs. I believe a depth of 4 in series with each series x 4 in parallel is 16 batteries is the total to can use in a battery bank. Here is a few pictures.

Be surw and run a capacity twst on thwm...
20lbs is light, and 13.04V is meaningless...

 

[eemarty]

FYI These batteries are down to $229.00 plus free shipping on amazon now. That's about the cheapest I've seen for any brand. ($0.173/Wh)

 

[Supervstech]

Has anyone capacity tested them yet?

 

[eemarty]

Has anyone capacity tested them yet?

I haven't tested these, but I have several other cheap brands from amazon that capacity tested over their specs. This youtuber capacity tested the 300Ah version and he got 322Ah out of it. I'd like to see an actual test of the 100Ah version.

I think it would be so cool if @Will Prowse would do an updated showdown with all the cheap 12V 100Ah amazon batteries out there now for less than $280. Also it would be cool to include one of the questionable yellowtop aliexpress 12V 100Ah batteries in this thread that are going for $170.

 

[Ntrain2k]

I actually just did some tests on the 12V 100AH battery and got these results. My weight was also substantially different than the earlier weight.

 

[eemarty]

Wow that's impressive! 127Ah out of a 100Ah rated battery.

 

[Supervstech]

I actually just did some tests on the 12V 100AH battery and got these results. My weight was also substantially different than the earlier weight.
View attachment 166054View attachment 166055

I would retest that... what ampdraw did you run the test at?

 

[Ntrain2k]

I would retest that... what ampdraw did you run the test at?

10 amps. Same as I used to test 2 battery evo 120 AH batteries that came out to 122AH and 117AH.

 

[Ntrain2k]

2nd test still going. Pic from before I left for work.

 

[Ntrain2k]

120AH this time. Could be the cheap charger I use didn't get it topped up all the way. I'll try again.

 

[Ntrain2k]

Heard from the company, the one I received has 8 smaller 63AH cells and is their older style. The newer ones are supposed to test out to around 102AH.

 

[Ntrain2k]

Made sure it was full this time and ran another capacity test. 12.5 Amps this time:

 

[normalchemist]

Price down to $219 today on Amazon, ordered 2.

Only thing I'm wondering is what to make of is the fact that the rated cycle counts on these batteries are lower than claimed for some alternate options... the description of the DJLBERMPW states "LiFePO4 battery can be used for 4000+ deep cycles, and 1500 cycles can be under the condition of full charge and full discharge." That seems to be less than, say, a LiTime 12V 100Ah battery which claims "LiTime LiFePO4 battery provides 4000~15000 cycles (10 times longer) 4000 Time Cycles at 100% DOD, 6000 Time Cycles at 80% DOD, 15000 Time Cycles at 60% DOD".

Are these lifetime claims meaningful? Or are some manufacturers just more conservative with their claims? Apologies if this question has been addressed thoroughly elsewhere

 

[cs1234]

Price down to $219 today on Amazon, ordered 2.

Only thing I'm wondering is what to make of is the fact that the rated cycle counts on these batteries are lower than claimed for some alternate options... the description of the DJLBERMPW states "LiFePO4 battery can be used for 4000+ deep cycles, and 1500 cycles can be under the condition of full charge and full discharge." That seems to be less than, say, a LiTime 12V 100Ah battery which claims "LiTime LiFePO4 battery provides 4000~15000 cycles (10 times longer) 4000 Time Cycles at 100% DOD, 6000 Time Cycles at 80% DOD, 15000 Time Cycles at 60% DOD".

Are these lifetime claims meaningful? Or are some manufacturers just more conservative with their claims? Apologies if this question has been addressed thoroughly elsewhere

Good question. 1500 cycles is still close to 4-5 years at once a day though.

 

[Supervstech]

Price down to $219 today on Amazon, ordered 2.

Only thing I'm wondering is what to make of is the fact that the rated cycle counts on these batteries are lower than claimed for some alternate options... the description of the DJLBERMPW states "LiFePO4 battery can be used for 4000+ deep cycles, and 1500 cycles can be under the condition of full charge and full discharge." That seems to be less than, say, a LiTime 12V 100Ah battery which claims "LiTime LiFePO4 battery provides 4000~15000 cycles (10 times longer) 4000 Time Cycles at 100% DOD, 6000 Time Cycles at 80% DOD, 15000 Time Cycles at 60% DOD".

Are these lifetime claims meaningful? Or are some manufacturers just more conservative with their claims? Apologies if this question has been addressed thoroughly elsewhere

Lfp tech is pretty straightforward with cycle life...
1500 would be a full charge to bms disconnect discharge... 100% usage.
4000 cycles would be an 90-10% drain...
80 20 likely will get you in the 8000 cycle range.

 

[matttelz]

I just picked up this battery. Should have it later this week. It's down to $210 currently.