That looks a bit similar to the Nitecore SC4 (SC for āSuperb Chargerā), except it uses USB Quick Charge voltage to power that charger.
If itās sort of a modification from the SC4 to adapt for USB QC input voltage, hopefully it wonāt have the bugs/āfeatures/annoyancesā 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 ācharging time-sharingā?)
How about flashlights with built-in chargers?
Hereās a comment on the charging behavior of the Sofirn SP32A V2.0
thatās currently being offered at a discount (read the first post, email them for a code):
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 HKJās reviews for detailed info).
Not a huge nitecore fan but the new UMS2 and UMS4 really interest me since it has QC3 input. I really dislike barrel plugs with only 1 purpose when I always have half a dozen various high speed USB all around the house.
Consider this my request for expediting any future QC2/3/PD chargers with that for the INPUT
Would you consider including the Liitokala Lii-PL4 in your review queue? This model is the same Liitokala Lii-PD4 sans the LCD readout. Quite similar to the Lii-402 which you reviewed more than a year ago.
Is it possible to get a review on one of these USB charging circuits?
Iām curious about stuff like
-does it limit the current you can draw through it (from what I can tell, the input and output are not directly attached)
-is there parasitic drain
-does the charging current fully terminate or does it ātrickleā
-how much battery voltage has to drop before it starts charging again
1. Yes, the current limit is based on a sense resistor tied to the sense pin of the TP4056 IC.
2. The TP4056 is supposed to draw a max of 6uA on standby, so no problem there.
3. Fully terminates from my experience with it.
4. Starts charging back at a max of 4,14V, and a min of 4,10V.