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DJLBERMPW, 12V 100AH LiFePO4: $259.00 + free shipping on Amazon ($0.196 per Wh) **Now $161**

Interesting. This same battery is listed in a few places on amazon with different reviews. Search DJLBERMPW 12V 100Ah on amazon. The one with 196 reviews gets an A from Fakespot, The one with 79 Reviews gets a B and the one with 24 reviews gets an F. It's strange that they don't tell you how many of the reviews they think are fake or what the fake ones are.

When I look at reviews I try to read a few of the most recent and look for people who have tested the battery, sound like they know what they are talking about, and include a picture of the test setup.

In this case, we have myself and other people in this thread who bought them and tested them, as well as a youtube teardown. What makes you think some of them are fake? I have seen no evidence of that. is it just because the the price is low?
 
Interesting. This same battery is listed in a few places on amazon with different reviews. Search DJLBERMPW 12V 100Ah on amazon. The one with 196 reviews gets an A from Fakespot, The one with 79 Reviews gets a B and the one with 24 reviews gets an F. It's strange that they don't tell you how many of the reviews they think are fake or what the fake ones are.

I would imagine that Fakespot doesn't detail out exactly which reviews they think are suspect has something to do with avoiding a claim of libel. Fakespot used to be more forthcoming with the specifics than they do now, perhaps someone (Amazon) has fought back. I was just thinking the other day "what if someone were to try a class-action suit against Amazon? What law firm would be willing to take that on?" Because you know Amazon has LAWYERS and POCKETS!

In any case, Fakespot is a very useful service that I use most anytime I buy anything over $50 from Amazon (that I haven't bought before).

When I look at reviews I try to read a few of the most recent and look for people who have tested the battery, sound like they know what they are talking about, and include a picture of the test setup.

In this case, we have myself and other people in this thread who bought them and tested them, as well as a youtube teardown. What makes you think some of them are fake? I have seen no evidence of that. is it just because the the price is low?

I do the same as you. I read the actual reviews. The fake ones are getting harder to spot, but most are pretty obvious. And for someone who sounds like they know what they're talking about, those are golden. There was a guy on this forum who had the top critical review on Amazon for the battery I bought and I was able to ask him here questions about it, which was awesome since Amazon has now removed that feature.

I see no deceit on this forum about this battery. I'm sure it's a good deal. It's just sometimes with bait-n-switch sellers on Amazon, what YOU buy might not be what someone ELSE buy's. I might think I'm buying the same battery as you, but since I'm buying from another seller with a poor rating, I *could* end up with a fake one.

As an aside, I have a hobby of a certain Chinese tea, called puerh. I've been drinking it for over 10 years now and have learned a lot. There are a few places other than the Yunnan region of China that try to grow and process a puerh-like tea, but 99% of it still comes from China. So I buy direct from China a few times a year. Point being is having gotten to know a few characters over the years, those who understand the differences between Chinese and American culture. Now what I'm about to say isn't likely true every where, but this is how it was explained to me: In America, it is considered rude and poor business to lie or misrepresent your product. Americans except to get what they pay for. In China, it is the opposite! In China, it's considered rude and poor business to NOT misrepresent your product. EVERYONE does it (most anyways)! If you aren't hyping up your product to the nth-degree, then there must be something wrong with you or your product. Everyone (well, everyone in China) knows that what you advertise your product as isn't really true. There-in lies the secret ingredient: luck! If you buy our product, you might get lucky and get a good one! And that is better than "getting what you paid for"! Because the idea of luck (so I've been told) is still very strong in much of Chinese culture. Some will say this isn't true anymore but if you look at their buying habits you will find them too buying trying to get 'lucky'.

In America we call this "quality control gamble". However you slice it, many Americans also like to gamble and get lucky. Hence the complaints for low-priced gambles like this are low or quiet, compared to when a high-priced item fails even once. If you're paying serious money, there should be a serious pay-off. I think this is in part why the grumblings of those disenchanted by Battleborn these days ring louder than someone complaining about a $168 battery.
 
I currently run 4 at 24v..
I have no issues with them at all. Besides shipping and customer service it's a decent battery for what you pay for.

They took 80amps easily and definitely let my inverter pull 3kw until I was happy.

I'm most likely gonna sell them for cheaper and get a decent 24v battery.
 

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seller "SZDJ" has only 80% positive rating. I don't buy from ebay or amazon sellers with less than 95-98%. Shows 5 negative reports (out of 20), in the last 12 months.

It IS a good deal, but hard to say that just because you get a good one, doesn't mean the next one will be of the same quality. If you needed to depend upon this battery, I would look elsewhere, but if you can afford it to not work and lose your $168, then I would bite.
I see 5 total ratings, only 1 bad - asking for a refund, all others seem content.
 
I see 5 total ratings, only 1 bad - asking for a refund, all others seem content.
The overall number is based on ALL ratings, not just written reviews. The non-written ratings are not shown on Amazon.
 
For those curious.

I tore one of the batteries I ordered apart, because I'm curious like that. I checked the cells on a fluke multimeter and shows only variance of .001 volts between the cells. so that's very good IMO, and I looked up the BMS which is JBD-ZP04S014-T-S V1.1

I found a BMS listed as JBD-ZP04S014 which looks the same on alibaba and these are the stats listed. They have the weirdest busbar though, they're all laser welded which is to be expected and the cell that connects to the BMS is just a prefabricated bus bar designed to fit to the bms directly from the cell, so no wires, which seems better than a wire. My other branded battery had laser welded bus bars between the cells then a wire to the bms, this is busbarred to the bms, on the bms side it's still bolted on though, not laser welded, so you can use a different BMS if you wish.

Here are the stats listed on the alibaba BMS listing for JBD-ZP04S014

It listed low temperature disconnect, I didn't test it though.

FunctionTest ProjectSpecificationUnit
MinMiddleMax
Working Voltage1014.6V
Working CurrentCharge Current100120A
Discharge Current100120A
Charge protectionCharger Voltage (CC-CV)14.6V
Over Charge Protection Voltage3.63.653.7V
Over Charge Protection Delay Time100020003000mS
Over Charger Protection Release Voltage3.453.53.55V
Discharge protectionOver Disharge Protection Voltage2.452.52.55V
Over Discharge Protection Delay Time100020003000mS
Over Discharge Protection Release Voltage2.933.1V
Over current ProtectionCharge Over Current120130140A
Charge Over Current Delay Time123S
Over Current Release Condition32S
Discharge Over Current 1120130140A
Discharge Over Current Delay Time13S
Discharge Over Current 2360400420A
Discharge Over Current Delay Time100500mS
Discharge Over Current Release Condition32S
Short Circuit ProtectionShort Circuit Protection Delay Time200500uS
Short Circuit ReleaseDisconnect the load
Balance FunctionStart Voltage3.353.43.45V
Voltage difference achieves the starting condition30mV
Balance ModeCharge balance
Balance Current4060mA
Temperature protectionCharge High Temperature Protection636567
Charge High temperature Protection Release535557
Charge Low Temperature Protection-2-10
Charge Low temperature Protection Release456
Discharge High Temperature Protection687072
Discharge High Temperature Protection Release586062
Discharge Low Temperature Protection-12-10-8
Discharge Low temperature Protection Release-202
Internal ResistanceInternal resistance of discharge circuit/510mR
Self-power consumptionWorking Mode20mA
Sleeping Mode200uA
Working TemperatureNormal working scale-2070
Storage TemperatureHumidity below 90%-4085
BMS sizeL*W*H114*85*10mmmm
 
These are back to $179 while others seem to be trying to increase the price for 100ah LMP back to $300. It seems that the $200 price might be here to stay.

I got one at $168 before Xmas expecting to have to return it. It passed the charging and capacity test and delivers 100a flawlessly.
 
1/31 - They've started selling a mini version - $189 !
I'm running 4 of the regular 100ah, purchased in January, few weeks too early LOL.
Now I'm curious if the mini uses same BMS, and would be compatible.

I don't see any confirmation of the mini size. They are showing dimensions that are the same as the older larger battery. Perhaps just not updated the Amazon listing? I wonder if this is the LiTime/PowerQueen/Redodo mini, or the GrenerPower/Cyclenbatt/Lipuls mini form factor, or something else entirely?
 
I don't see any confirmation of the mini size. They are showing dimensions that are the same as the older larger battery. Perhaps just not updated the Amazon listing? I wonder if this is the LiTime/PowerQueen/Redodo mini, or the GrenerPower/Cyclenbatt/Lipuls mini form factor, or something else klhttps://a.co/d/3Crkne9
These dimensions are smaller than Li Time mini.
 

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I must have misread those. I was sure I saw 12 inches. Looks like the LiTime case maybe but not as tall. Perhaps a typo with the dimensions or something new entirely.

Maybe someone who has one can chime in with confirmed dimensions?
 
Maybe someone who has one can chime in with confirmed dimensions?
I asked the vendor to confirm the dimensions. They came back confirming the height was as listed. Somebody needs to get one and tell us....
 
It's unclear if this has low temperature charging protection or not. Most of the info seems like it doesn't but one of the product Q&As says this:

Has anyone purchased these? The brand name is ridiculous. The page says "Returnable until Jan 31, 2023".

DJLBERMPW battery currently does not have a low temperature cut-off function, and recommended use environment is higher than 0℃.
 
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$168 again, lightning deal on amzn

edit: deal is over, but I noticed you could only buy one at this price.
 
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The battery on Amazon is at $189 now, but I found this…

No info on it, but looks like a steal… fake?
 

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Tempted to get another 24v 100ah mini to pair with existing and then same again with 48v 50ah.
I recently switched from 12v to 48v and have 4 of the djlbermpw 12v 100ah in series. They’re performing well with 3.2kw inverter, staying well balanced. I bought a balancer for them but haven’t connected yet. I think I’ll get a couple of the eco worthy 48v 50ah and parallel them. Right now it’s about same price considering I won’t need a balancer for them.
 
Does anyone know the actual dimensions of the internal cells? I'm curious if you can weld together two full size battery cases and fit like 3 sets of cells if you rotate them 90 degrees...?
 
Does anyone know the actual dimensions of the internal cells? I'm curious if you can weld together two full size battery cases and fit like 3 sets of cells if you rotate them 90 degrees...?
20240302_141527.jpg

Worked well with pouch cells. If it's prismatic cells they're usually welded together and really hard to harvest cells from.
 
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