DIY Power Bank Box – 3x18650 Battery Charger Case | Dual USB 5V 2A & LED Night Light

A decent power bank, doesn't support fast charging, but the quality is good.

great
Charging speed is a bit slow
You can use lighting.

very nice and beautiful

very good

battery box easy handling and good performance very practical

Good

The spring contacts for the 18650 cells are stronger than a typical spring due to the amperage. One warning: once the battery bank is snapped together, getting it apart without damaging anything is nearly impossible because of all the latches. The ‘100’ on the lower left of the display means nothing. It doesn’t light up like the 25 50 75 100 readout at the top.

Not a bad construction set for a power bank, the flashlight is powerful, but you need to consider that there is no fast charging and batteries with protection won't fit, only standard ones.

Order: aug 11, delivery: aug 16, 2005. It took 5 days for delivery.



This one exerts 5v,2a(10w) charge on both usb1 and 2.



It is good in that it does not turn itself off prematurely when charging a low-power devices like mp3 players with small battery capacity, if its leds on both lane on its font are turned on.



It would be better if its batteries could be taken out and put in freely as it houses only three batteries.



As always, this one is satisfactory as well.

warm, pleasant light.

This is a really nice power pack. There is one pretty big issue. The batteries are really tight and the back cover is extremely hard to install. Changing batteries in the future could be a problem.

Works fine. Standard power bank no frills no pd, simple 5v charger. Nice display. Compact and nice looking. Lights work, not super bright, i expect to rarely use the lights. No complaints.

everything works great
It would be great if it used 4 batteries.
and even better, how about making them for 21700?

DIY Power Bank Box – 3x18650 Battery Charger Case | Dual USB 5V 2A & LED Night Light

Looks good not tested

Very nice if you want to make your own battery power supply. Uses 3 18650's, which i haven't had the time tro add yet but the build quality is very good.

The quality is good but there is no fast charging. It's regular charging here.

Small power bank quite useful even if the capacity isn't logically huge (even with 3 18650s of large capacity), it still helps out very well.

I took 2 as emergency lights in the cars, it's very practical.

The procedure: - 1 short to turn on, a long to turn off.

- 2 short to turn on the light, 2 short to turn off the light.

For those who complain about the light being too dim, it always starts at the lowest intensity! !

Light on, each short press follows a medium/strong/flashing/weak cycle...

So if you just want the strongest intensity light, you need to do: 2 short to turn it on, 1 short, 1 short.

You're welcome.

Brightness low at night. For sleep light use. Satisfied with the power bank design.

Good, nice. It works as indicated in the description. But max capacity will be 3500*3=10500mah

excellent power bank, everything works, 18650 batteries can be installed without a protection circuit

Pretty cheap feeling but works as intended and feels weighty with the batteries installed. 3 cells in parallel using a 1s bms. (probably fine) charges and discharges just fine. Two clicks turns on the leds by the way!

I ordered four of these in the past they surprised me they worked very well. My wife takes one to work in case her phone gets low. I use them around the house to power little led lights that i’ve installed on different halloween decorations. Perfect little power supply for these situations.

I didn’t know you had to put batteries in that is kinda stupid but that’s on me for not reading so if you want that then its a 10/10

good quality! super fast delivery!

Works ok, but i wish there was fast charging through the usb type-c port. The usb type -c port is input (charge) only and does not output (discharge). I love the light feature.