Powerbank for a Samsung S21

neviditelny · 15 Jun 2022 at 18:33

Can anyone recommend a good powerbank with a fairly big charging capacity? That could charge my phone 2-3 times on one charge. And is there any powerbanks that can do fast charging?

Merlin5 · 16 Jun 2022 at 11:41

I bought this in December and have been using it with my S7 Edge. It's absolutely brilliant, fast charges, shows the percentage of battery left, is slim and not too big.

https://www.amazon.co.uk/gp/product/B08JTQ66K7/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

Orcvader · 16 Jun 2022 at 13:00

Ideally look for anything with USB-PD, the S21 uses USB-PD to fast charge so you'll want to stick with that.

Merlin5 · 16 Jun 2022 at 14:50

Yeah, mine is PD 3.0 and QC 4.0. This one would be a better bet, same model and spec, but 20000 mAh.

https://www.amazon.co.uk/INIU-20000mAh-Portable-High-speed-Compatible/dp/B07YPS5JC5/ref=psdc_1326521031_t2_B08JTQ66K7?th=1

Interesting, I just charged my S7 Edge with my powerbank, and it took 17 minutes to increase the phone battery by 20%, but on the S21 FE, it took 17 minutes to charge the phone battery by only 12%. Anyone know why it's slower to charge the S21?

Orcvader · 16 Jun 2022 at 15:44

Merlin5 said:
Interesting, I just charged my S7 Edge with my powerbank, and it took 17 minutes to increase the phone battery by 20%, but on the S21 FE, it took 17 minutes to charge the phone battery by only 12%. Anyone know why it's slower to charge the S21?

The charge rate may be the same but the S21 FE's battery is a lot bigger than the S7, there's more to fill.

Merlin5 · 16 Jun 2022 at 17:12

Orcvader said:
The charge rate may be the same but the S21 FE's battery is a lot bigger than the S7, there's more to fill.

Yeah, good point. S7 is 3600 mAh and S21 is 4500 mAh I think. I worked out from my test that a full charge from zero with the Powerbank is 1 hour 40 minutes on the S7, and 2 hours and 20 on the S21. So an extra 40 minutes for the S21.

VortexA1 · 18 Jun 2022 at 14:01

neviditelny said:
Can anyone recommend a good powerbank with a fairly big charging capacity? That could charge my phone 2-3 times on one charge. And is there any powerbanks that can do fast charging?

Merlin5 said:
Yeah, mine is PD 3.0 and QC 4.0. This one would be a better bet, same model and spec, but 20000 mAh.

https://www.amazon.co.uk/INIU-20000mAh-Portable-High-speed-Compatible/dp/B07YPS5JC5/ref=psdc_1326521031_t2_B08JTQ66K7?th=1

Interesting, I just charged my S7 Edge with my powerbank, and it took 17 minutes to increase the phone battery by 20%, but on the S21 FE, it took 17 minutes to charge the phone battery by only 12%. Anyone know why it's slower to charge the S21?

Yes I have that powerbank in white. I fully recommend it too.

neviditelny · 19 Jun 2022 at 17:49

I've ordered the Iniu power bank with USB-PD 3.0 and QC4.0 that several of you recommended. Should arrive tomorrow