How do I know when the batteries are fully charged?

When you put a battery in the charge indicator will change to white, once it is completely charged, it will go back to the same purple color that it was with no battery in the slot.

Will this charge 21700s?

idk it says 20700 look in description

Can this charge batteries of different chemistries?

If you mean diffent milli amper hours. Yes you can. I do not recommend any thing over 18650's because the e fest is designed for that mah.

Battery Charger - Lush Q4

Product ID: 357262353

Details

Brand
Efest
Colour
Black
Item weight
50 Grams
Output voltage
4.2 Volts
Specification met
ETL

⚡240V Power

📏17.5x14.81cm Size

⚖️50g Lightweight

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AR$199468

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Efest
Colour
Black
Item weight
50 Grams

Description

🔋 Power Up Your Life with Efest!

SAFETY FIRST - Built-in protections keep your batteries safe and sound during charging.
CHARGE WITH CONFIDENCE - The Efest Lush Q4 ensures your batteries are always ready to go.
SLEEK COMPACT DESIGN - Perfectly fits into your modern workspace without taking up too much space.
UNIVERSAL COMPATIBILITY - Works seamlessly with a variety of battery types for ultimate convenience.
FAST CHARGING TECHNOLOGY - Get back to your devices quicker with rapid charging capabilities.

The Efest Lush Q4 Battery Charger is a lightweight, compact charging solution designed for efficiency and safety. With a sleek black finish and universal compatibility, it’s the perfect addition to any tech-savvy professional's toolkit.

Specifications

Brand	Efest
Package Dimensions	17.5 x 14.81 x 5 cm; 50 g
Item model number	LUSH Q4
Manufacturer	Efest
Color	Black
Voltage	240 Volts
Are Batteries Included	No
Item Weight	50 g

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