Review request for HKJ [Rechargeable Batteries]

Batteries and Chargers Rechargeable Batteries
777

Hello! :-)

I just found some new, interesting 26700 LiFePO4 cells:

That is the highest capacity and energy density I've ever seen in LiFePO4 chemistry. Edit.- Well, not exactly as (for example) PLB has some 3800mAh rated 26650 LiFePO4 cells. But quite close.

Some inexpensive seller sale links:

Thu, 06/11/2020 - 22:35

778

Hello!

This is just to ask if someone else besides me would like to see the new LiitoKala 26700 4000mAh LiFePO4 cells reviewed. I could send Henrik a couple of the above cells for just under €6 (got a €0.83 coupon), and I was wondering whether someone else would send me a small donation to share the costs, like €3 from one source or €4 total from two persons.

So say something while I ask Henrik if he is willing to make such review. Thanks. :)

779

Vapcell now offers 26350 cells. They are 2000 mAh like the generic ones and 6A doesn’t suggest that they are any different but maybe?
Would be nice to see them tested. :slight_smile:
http://www.vapcelltech.com/index.php/List/index/cid/99.html

780

HKJ - firstly, thank you for your reviews, which make you an international treasure IMHO.

Is there any chance of reviewing Soshine’s (new?) batteries with built-in USB ports? I have recently purchased them in 26650/5500, 18650/3600, 18650/2600 and 14500/700 sizes, and it would be wonderful to learn just how good (or bad) they are.

781

A link to where I can get them would be nice.

782

Ah, yes. Well I’m in the colonies (South Africa) and I bought them from a local distributor here, so I’m not sure how useful that is to you? I’ll PM you a link, in case it’s of any use to you…

783

Probably not very useful. If he will sell to me, it will cost a fortune in shipping.

784

How is your queue looking these days for li-ion cells?

785

Very low, that is one of the reason I publish very slowly.
But a manufacturer/rewrapper has promised me a large pack of cells (More than 15 types) for testing.

786

I figured/hoped that was the reason. I know you won’t be doing this forever, but I hope it’ll still be for a while yet. You’ve created the best open source battery database in the world. I’m so grateful!

I’m interested in seeing the latest 21700 offerings that achieve higher discharge rates and achieve close to 5Ah. Vapcell G48 is interesting. I’m hoping for a true 15A (stays below 70°C), 5Ah cell.

Also, I just purchased some cheap ‘HiQuick’ AAA NiMH cells in Amazon with a Vipon code (about 5USD for 8pk). Not sure if they are available affordably to your country or not. Interested how they stack up. I’ll try and test them myself when I get a chance, but you may want to test them too. I’ll send two for the price of shipping if you like. Pm me if that interests you.

787

I will probably continue my reviews years yet, but I also have other interest.
One of my interest it making test equipment and I have made some recently to make my testing easier and more automatic. And also some just to add some small improvements. A lot of this will be published on my website in the “project” category and some of it will also be published here.

My main project the last ½year has been to make a new program to control my testing, I will probably not use it for battery testing, because my current solution mostly works. It will be used for USB-C chargers (Together with some hardware I have made) to make it much easier for me to do the testing.

788

Hi HKJ;

As many of us buy Sofirn lights with the included battery, could it be possible to test some of them. Your site has the 14500 / 900 mAh cell only.

I’d think Sofirn would oblige in sending you some samples.

Thanks…

789

Hello Henrik,

Looks like your site suffered some sort of mess up with your latest battery review, the Samsung 50G one. First and foremost, the link to it in the main page got a big picture of the cells attached to the review name, making the cell “the star of the show”:

In second place, certain graphs in the review are “out of scale”. …

Everything fixed.

Just to point this out.

Wed, 10/14/2020 - 16:32

790

Hopefully fixed now, but it may be an hour before the website is fully up to date.

791

The new Vapcell T50 21700 battery looks interesting. Some here have said it contains a Samsung INR21700-50S cell.

Have they sent you samples to test?

792

I do not know if they have send me any, but I have not received any.

793

Could you test Sofirn’s batteries?

Sure would be nice to know their actual capacity and current capacity.

794

Hi HKJ

Sorry, things are busy recently,

I forgot to tell you that we sent the sample T50 test a month ago

thank you

Just check the tracking number. It’s very slow. It hasn’t arrived yet

RV506918510CN

运输途中

中国
China Post
丹麦
PostNord Danmark
2020-12-15 07:05Internationalt Postcenter, The shipment item has arrived at the country of destination.

目的地 - 查询耗时：3011 ms
2020-12-15 07:05
Internationalt Postcenter, The shipment item has arrived at the country of destination.

2020-10-28 17:09
The shipment item has left the country of the sender.

2020-10-22 12:57
The shipment item has left the country of the sender.

2020-10-22 10:55
PostNord, The electronic shipping instructions have been received.

发件地 - 缓存时间：2020-12-16 10:25:48 (GMT+08:00)
2020-12-15 07:05
哥本哈根, 到达寄达地

2020-12-15 07:05
哥本哈根, 到达寄达地处理中心

2020-10-29 11:13
乌鲁木齐市, 已交承运商运输

2020-10-29 11:13
乌鲁木齐市, 已交承运商运输

2020-10-29 11:11
乌鲁木齐市, 到达【乌鲁木齐交换站】

2020-10-29 11:01
乌鲁木齐市, 离开【乌鲁木齐互换局】，下一站【乌鲁木齐交换站】

2020-10-28 17:13
乌鲁木齐市, 【乌鲁木齐互换局】已出口直封

2020-10-24 12:58
乌鲁木齐市, 离开【乌鲁木齐寄递事业部小包业务营销中心营业部】，下一站【乌鲁木齐国际】

2020-10-22 12:57
乌鲁木齐市, 【乌鲁木齐寄递事业部小包业务营销中心营业部】已收寄，揽投员：童建军

795

Hi HKJ! A few of us would be very interested in the T50 testing. Understand the shipping has gotten really bad and you have a backlog queue.

I was lucky to receive 4 of these but they have been scarce - limited qty, sold out quickly, waiting for re-stock.

They look impressive with having excellent performance and high capacity in a 21700. If you received them, and could give us an approximate time frame, that would be much appreciated.

Thanks!!!

796

Vapcell K64 6400mAh 26650 battery. It looks like you will have to increase the maximum in your 26650 comparator.