Best charger for UMX and micro batteries? Ultra Power UP-S4AC

Short unboxing, overview and test of the Ultra Power UP-S4AC charger.
While looking for a good small charger to use for my micro batteries this seemed to tick most boxes so I decided to give it a try.

Some online reviews indicated issues with overcharging batteries, while testing it it did not happen to me.

Specs:
Input Voltage: AC100-240V/DC 7.0V-17.0V

Charger Power: Max.7WX4,±10%

Charger Current: (0.1-1.0A)X4,±10%

Battery Type: Lipo/LiHV/NiMH/NiCd

Battery Cell count: Lipo/LiHV(1-2 Cell)

NiMH/NiCd(2-6 Cell)

Indication: LCD Display Screen + LED Light

Support Battery Port: SM/XH/Micro/MX/JST/mCPX

Net Weight: 220g

Dimension: 125X78X42mm

Music: Heartbeat
Musician: LiQWYD