Plus if you buy $75 you get free shipping :money_mouth_face:
this page has a ton of info about chargers
https://lygte-info.dk/info/roundCellChargerIndex%20UK.html
you can select the desired features, and then click on rating to sort the highest ranking

I prefer slow (.5-1A) charging, and I really like my Xtar VC2 chargers. Only $11-13 on AE. I’ve been getting them locally for $7.
Ditto. Bought mine as recommended by Killzone but even cheaper here XTAR MC2 2 Bay USB Battery Charger
For one of the most recommended chargers with accurate testing there is the Opus BT C3100 v2.2 charger from legit AliExpress store: Page Not Found - Aliexpress.com(link is external). It is about $35 IIRC, half the cost of same thing on Amazon. The seller I quoted is legit and the thing came in around 10-12 days. AFAIK Opus is one of the few chargers that could test internal resistance and capacity accurately. Google it.
testing
Last reply vanished somehow, take two:
The Nitecore UM2 and Xtar VC2 look interesting but are hard to find shipped to Canada.
Both accept USB power which is very convenient.
The Nitecore can test internal resistance but i can’t tell if it can test capacity
Opus BT C100
Sofirn has given me a few USB lithium ion chargers when I bought their stuff. Do you have any left over? I think there’s a lot of 1 bay USB chargers.
I’ve been using a Miboxer 8 bay for a while;really like it.
There are some on Amazon from around $28 and up; mine was $45.