Review request for HKJ [Chargers]

https://www.aliexpress.com/item/12V-400mA-AC-DC-Isolated-Power-Buck-Converter-220V-to-12V-Step-Down-Module/32689144361.html?spm=2114.search0104.3.92.a4bf3e8fPacbu6&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10151_10065_10344_10068_10547_10342_10343_10340_10548_10341_10696_5013115_10084_10083_10618_10307_10059_5013415_100031_5013215_10103_5013315_10624_10623_10622_10621_10620,searchweb201603_2,ppcSwitch_7&algo_expid=8b2ca8ea-b926-4a84-911a-9c40b94d6d44-13&algo_pvid=8b2ca8ea-b926-4a84-911a-9c40b94d6d44&transAbTest=ae803_1&priceBeautifyAB=0
This is a power supply, not a charger, but if you can, i want to know about how safe and good it is
this PS would be very convenient for small project

A $1 power supply, I have ordered on.

I do generally not like AA based power banks. 4xAA is about the same energy as one 18650 cell.

http://mgb.maxell.eu/de/products/aa-battery-powerbank-936.aspx
https://www.ebay.co.uk/dsc/i.html?\_from=R40&\_sacat=0&LH_TitleDesc=1&\_nkw=790415+maxell&LH_PrefLoc=2

HKJ will do you a roundup of chargers for 2018? Or do you think this page is good enough: https://lygte-info.dk/info/roundCellChargerIndex%20UK.html ?

thanks for all the hard work!!

I have never done a roundup of chargers, in late December I do a status where I list some noteworthy products from my testing during the year.

That's what I probably meant.. I thought you sometimes showed a list of recommended chargers...

Charger & Powerbank:
https://www.amazon.de/reVolt-Powerbank-Batterie-USB-Powerbank-Batteriebetrieb-Weiß/dp/B00ENG4GXE
https://www.amazon.de/equinux-tizi-PowerSnack-universelles-konventionellen/dp/B00QWZ02L4
https://www.amazon.com/Verbatim-Power-Bank-Charger-97928/dp/B007MLHS2S
https://www.amazon.com/SANYO-eneloop-charger-output-KBC-E1AS/dp/B002S0N8X6
https://www.ebay.com/itm/MOBILE-BOOSTER-AA-ENELOOP-CHARGER-CON-PRESA-USB-SANYO-KBC-E1S-NUOVO-lrx/302799612441

Charger only:

https://lygte-info.dk/review/Review%20Charger%20Ikea%20Vinninge%20403.036.32%20UK.html
https://lygte-info.dk/info/roundCellChargerIndex%20UK.html

How do you think about XTAR VC2S?

https://www.gearbest.com/chargers/pp_009649709878.html?lkid=15540141

I do not have anything to say about it yet, but Xtar has promised me a review copy.

Nitecore UMS4

I definitely want to review that charger, but it will first be next year, I have a lot of chargers in queue.

That looks a bit similar to the Nitecore SC4 (SC for “Superb Charger”), except it uses USB Quick Charge voltage to power that charger.

If it’s sort of a modification from the SC4 to adapt for USB QC input voltage, hopefully it won’t have the bugs/”features/annoyances” that are present in the SC4 (the SC4 time-sharing of charging certain slots seems to be also present in other Nitecore chargers; but also in some SC4, the capacity charged display can display grossly incorrect charged capacity results, as mentioned by several user reports when the SC4 is charging all 4 slots, maybe related to the “charging time-sharing”?)

Hi HKJ, hopefully you can fit the Zanflare C2 into your queue.

https://www.amazon.com/Display-Universal-Zanflare-Rechargeable-Batteries/dp/B07F3KMVTM

Probably not this year, I have a lot of chargers in queue at the moment.

How about flashlights with built-in chargers?
Here’s a comment on the charging behavior of the Sofirn SP32A V2.0
that’s currently being offered at a discount (read the first post, email them for a code):

where Lux-perpetua said

I like to measure the battery voltage while testing chargers, that is rater difficult on a flashlight without drilling holes!

Can a charger that’s capable of providing say 1 amp to a slot somehow detect a smaller cell and reduce the charging current?

That depends on the charger, some can, either by testing the length of the cell or by measuring the internal resistance.

Some Nitecore chargers do that, I know the SC4 and the F1 does that. I think 14500 or 18350 get 0.5A while 18650s get 1A (for the Nitecore F1). The SC4 also has something similar (check HKJ’s reviews for detailed info).