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.

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Batteries

VARTA alkaline battery V13GA (LR44) 1 pcs

Name: VARTA alkaline battery V13GA (LR44) 1 pcs
Brand: Varta
SKU: 1096256
Price: 0.99 EUR
Availability: InStock

SKU: 4008496297641

Price

€0.99

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Delivery

Pick up at SmartPosti parcel locker

October 7‑9 (from 9.99 €)

Delivery to home / office

October 8‑12 (from 13.99 €)

One shipping fee for the whole order — the number of products does not affect the shipping fee.

Description

High quality alkaline battery for electronic devices. Special packaging protects against unauthorized access.

VARTA's specialty alkaline batteries are mercury-free and are ideal for a wide variety of long-lasting energy applications such as toys, torches, insulin pumps, garage door openers and many more. They have a specially designed packaging that can only be opened with scissors. It protects against unauthorized access, for example from children.

Technical specification

: Type: 4276 Diameter: 11.6 mm Height: 5.4 mm Weight: 2.0 g Electrochemical system: Alkaline manganese battery Voltage: 1.5V