Does fast charging damage the battery?

No. Phones made from 2020 onwards manage charging speed and temperature themselves, so fast charging is safe for everyday use. If you want to stretch battery life as far as possible, wired charging at a moderate 10–20 W is the gentlest option.

Can I use any USB-C charger?

Yes, USB-C is a common standard. Fast charging, however, only works with a compatible charger (Quick Charge, USB-PD, SuperVOOC). Always use a certified charger — an uncertified one charges slowly and can be unsafe.

Wireless or wired charging — which is better?

Wired is faster and more efficient, because less energy turns into heat. Wireless is more convenient but slower and runs warmer. For long-term battery health wired is slightly better, though with current technology the difference is small.

How powerful a charger do I need?

It depends on the phone: iPhone accepts 20–27 W, Samsung Galaxy 25–45 W, and OnePlus and Xiaomi flagships 80–120 W. There is no need to buy the most powerful one — 20–30 W is enough for most phones and works with everything.

What power bank capacity should I choose?

10,000 mAh covers normal use — two to three full charges. If you travel a lot, 20,000 mAh is the better choice. Check the output power too: 20 W or more means the power bank can fast charge.

🚚 Free parcel locker delivery from 39 € · To Unisend / SmartPosti parcel locker

Searching...

Batteries

Rechargeable 21700 Size Battery with USB-C Port, 3.6V, 5000mAh, Li-Ion, 2pcs

SKU: 9990000620388

Price

€25.99

14 dienų grąžinimas
Gamintojo garantija
Saugus atsiskaitymas
Nemokamas pristatymas nuo 39.00 € To Unisend / SmartPosti parcel locker

Delivery

Pick up at Omniva, Unisend, SmartPosti parcel locker

September 19‑21 (from 3.09 €) (FREE from 39 €)

Delivery to home / office

September 19‑21 (from 9.99 €)

Description

Rechargeable 21700 battery, 3.6V, 5000mAh capacity, with USB Type-C port, 2pcs.

Features:

With charging light indicator (red for charging, blue for full). 500 times cycle which equals to 500 traditional batteries. If not used for a long time it is recommended to do a single charge operation a month to extend battery life.

Technical specifications:

Battery type: 21700. Capacity: 5000mAh. Charging mode: USB Type-C (F). Element type: Li-ion. Size: 76.3 x 21.4 mm. Rated voltage: 3.6V. Input: 5V/ 1600mA. Output: 8A max. Weight: 2x 71g. Set includes: 2x battery 21700, charging cable USB Type-A to 2x USB Type-C.

Important information!

Waste batteries and accumulators must be disposed of into specially marked containers.

Warranty:

12 months.