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I am keeping my eye on that unit. My only hesitation is the UPS function. The transfer switch is really slow. I am waiting to see if they resolve the issue with a software update if that is even possible. It may be a hardware issue as well. Thanks!

Thanks for the links and info. I already wrote to sales@east-tester.com immediately after posting to your reply. That contact was on the documentation with the device. If I don’t get a resolution, I will simply return it. Thanks again.

Sorry, I never got a phone number, only addresses. I think one for the main office, and one was for service/warehouse. Two different locations, both in California.

No it did not. There was no access to the BMS. The only way to get to it was cutting the case open. The warranty is then gone.

I am not being hard on his reply. I do all of the above listed steps for paralleling. I also have four 48V/100Ah server rack batteries in parallel as well in a Signature Solar rack with bus bars. The exact same steps have been followed. The only thing I can change is where the bus bar cable lead...

Mine were picked up too, and are on the way. They haven't left the freight companies loading dock yet. Still sitting there.

Here is the link for the software: https://jakiperbattery.com/product/jk48v100/ Click on "Download" to see the list of available software. You will find the BMS and the Anti-Theft software under "Download". See pic below.

Received my UPS (I thought it was going to be FedEx) tracking number today. The batteries cleared customs in one day. I am awaiting them to leave the UPS terminal in Hawthorne, CA. I live in Pennsylvania, so it will take a good week to get them. The expected delivery date is Jan. 29th. That date...

I have been holding back on buying a new "Solar Generator" I had a Bluetti EB2400, but it proved to be bust as I had one, had it replaced only to get another dud. Returned for refund. I have a Jackery 500, it is nice but under powered for my needs. I still hear things about Bluetti firmware...

The price for two would be over $80. If you need 240V, go with a 240V version. It looks as though it is from the same manufacturer.

I charged the batteries fully in parallel last week and kept and eye on the voltage of all four and independently. Connected, they settled to13.47V after two days as well as independently. I put them under a load to discharge them a little, then disconnected them, and charged two each at the...

A firmware update may do the job, however it may be possible that the hardware is not capable of establishing the proper communications, and a simple firmware update in that case would not work. Let's see how Jakiper reacts to his request.

That is beyond my abilities. Try starting a new thread in General discussion.

So, here are the results for the four Lion Energy batteries. Three of the batteries surprisingly showed the exact same values during the monitoring, and only one was different at the 5 minute measurement with a voltage of 13.78V, but was still at 13.78V 30 minutes later. After that, all three...

I ordered one and should be here by the end of the week. I have a question about the AC or grid utility charger. It states that it is a 24V 60A charger. Are you able to select lower amperage output ( i.e. 60A, 40A and so on)? I read that the MPPT solar charge controller is highly configurable...

Can't post a picture, the batteries have been removed. The batteries were side by side and connected with copper bus bars that I purchased, cut and drilled to equal lengths that fit the terminals to exact length. The copper is then insulated in the middle with shrink tubing. I did have 2/0...

Unfortunaltely I cannot use a window air unit. My windows all slide open sideways. I do not have double hung windows. I did look for a mini-split, but that would only cool one room, and I already have central air. So even if I have a mini split, I would still have to run the central to cool the...

I finished my final test with the Ampere Time 200Ah Plus batteries. It took a while as I was busy with the CHINS batteries that arrived before I could finish with these. So here it is. I have a 12V Giandel 2200W PSW inverter, and used it to put these batteries through a load test which would put...

Great news! I added two 6 gallon water heaters (ecosmart 120V) and they work great. Bad news, once they heat up the water to temp, they hardly use any power. So I still had excess power. Now that the days are even longer, I tested out our dehumidifier for an extended period of time and it works...

Good idea! Will do.

The system is designed to handle a few items that don't even push this to half of its capacity. The chart you see is a typical day with two fridges and two sump pumps running. The wash machine (1-2 times a week) pushes it to 1200W total load in short cycles. The normal load is around 550W. I...

I have a Bluetti EB2400 that suddenly has an issue. I turned it on, a second later the display went blank and the On/Off LED is stuck on. I can't turn on the AC or the DC, no power going out, can't turn it on or off. It seems dead. I looked online for a button combination to do a reset, found...

Will do! I will be using the IOTA charger again as they are best chargers I have. Heck, even Lion Energy told me to buy them as their engineers use them as well. Looks like I tossed out some money if the algorithms can't be trusted. I will have to babysit them till the charging process is...

I bought a solar street light to light up an area of my yard where there is no power. When the unit arrived I nothiced something strange about the solar panel. What at first looked like broken glass turned out to be something else. Can anyone identify this? I sent the unit back and got a...

After my post above and looking over the battery again, I decided not to proceed with the repair for several reasons. Mostly because I am disabled, and my physical limitations are just not up to the task. It is really hard doing an installation, but after less than a month and a half, having to...

So glad your battery arrived. Still no word on mine as of yet. Everyone involved was a big help, however I haven't heard anything from Jakiper or ABF. I am sure the weather has really slowed things down. We got nailed with snow overnight. Enjoy your battery and I hope it serves you well.

Yes, I did order it from watts 247. I guess I’ll give Ian a call. Thanks!

I placed my order on December 4th, and my batteries are at the freight company in San Bernadino awaiting a truck for loading. My order now shows "Completed" on my Jakiper account. Speaking for myself only, I don't think I will be seeing my batteries for a long time. The estimated delivery date...

If you can't get them, try Jakiper Batteries. I have two EG4's from Sig Solar, and I just recently recieved two Jakipers. I am testing them now, and I am happy to report that so far, they are great.

I recieved my Jakiper batteries and my new battery rack. One of my Jakiper batteries is stuck in alarm mode and cannot be used. My other battery is installed in my rack with my EG4 LiFePOwer batteries. Once I get the wiring done, and can get everything connected, I will be testing to see if they...

Program #24 is only in use when two or more Growatt's are connected in parallel (expansion). Sorry, I forgot to reply to the previous posting.

Program #24 is only in use when two or more Growatt's are connected in parallel (expansion).

Called AFB freight today to find out why there is no movement with my batteries. They explained to me that there was a billing issue that is unresolved, and they hope it is cleared up soon. Till then, my batteries sit in Limbo. I don’t know what to think now.

I noticed the same thing and was worried that my order was one to be delivered in March/April 2022. I sent an email with my order number to Jakiper sales, and they assured me that my order was included in the shipment that just arrived and will be sent out as soon as possible. You might want to...

Just to be clear on the high voltage cut off. One battery always cut off at 14.3V, The other at 15.2 and 15.3 with two full charges. So no consistency with that. The low voltage cut-off did not work at all. Better said, I cut the load on both batteries at just above 8.3V. It just kept going and...

I expected delivery today, but they are stuck in Maumee, Ohio. UPS does not state why, just that I have to check back tomorrow for the new scheduled delivery date. I will keep you all posted when they arrive. My Growatt arrived Thursday, and I am configuring it now.

Well, you are not going to believe this. The Jakiper batteries are equiipped with an anti-theft function that goes into alarm, shuts down the BMS and sound the beeper until the battery is reset. The anti-theft is active on mine for some reason. Once the battery is tilted to 60 degrees, the alarm...

Just south of Pittsburgh. You are on the other side of the state. My batteries are still in San Bernardino.

I have four Lion Energy UT-1300's for my 12v system. One of the four batteries is starting to fail and needs replaced. They were expensive. I am building a 24V system and went on the cheap with success so far. Two Ampere Time Plus 200Ah and two CHINS 200Ah. Both have 200A BMS's. I am still...

I do want to warn anyone interested in the ecosmart 6 gallon water heaters. They are big and need lots of space, so if you are looking to install one, get the dimensions and measure. I had to heavily modify a big dual sink vanity to shoe horn it in. Now there is little to no useable storage...

TEG is more expensive, and one reason why it is mostly used in industrial applications. I personally would never use TEG myself due to its nature and high cost. Solar’s source of power is free, TEG needs a heat source which end users and consumers need to pay for. Very inefficient and costly...

That would be easier, but the idea is to have four very important things running in the event of an outage. We have frequent outages, and in winter they are quite long sometimes. We are often gone on weekends during the summer. So we need to have the following running when we are not home, and...

Sorry for the delay. My sliding windows only have 18 inches on one side. To get more room I would have to completely remove the windows and build an insert that is insulated and weatherproof. I have two large windows in our living and dining rooms that have crank out windows. They will not...

I am in no way an expert, but to my knowledge, ANL fuses are for short circuit protection, and not load protection. ANL fuses will allow for 110%-150% additional load before blowing. To me, that means for example, a 100A ANL fuse will blow at over 160A. My wiring is not protected with this type...

Wow, I thought I had it bad. Really sorry to hear about that. Contact Jakiper, they may send you a complete replacement, who knows. In my case, the RST is a BMS issue and they can send me a replacement BMS. I so regret buying these batteries. I really wish I had stuck with the EG4's. No issues...

I did look into installing line filters, but the electricians highly recommended against it, plus the extra cost. When they saw the EXTREME voltage and frequency fluctuations, they firmly suggested getting the Growatt out of the equation. The electricians literally laughed saying they never saw...

I purchased them through Amazon.

I am on the phone with ABF Freight right now. It seems that they cannot find the batteries. They see there is no movement, but they can't find them in the system and they literally told me that they are more than likely misplaced. No one seems to know where they are, Jakiper is not doing...

The story is coming to an end. I switched from Growatt to VE and I am happy. For those interested: https://diysolarforum.com/threads/from-growatt-to-victron-energy.30978/ I loved the Growatt system, but could not resolve the power fluctuations and the flickering. The VE system runs flawlessly...

I am looking for lightning protection for my "Off Grid" system. A bit of explaining first. I have a Victron based system with a Quattro 48V/5000/70 that is connected to the grid (50A dedicated breaker) for charging purposes only. The system uses the grid connection maybe two to three time per...