PACKAGING -Arrived with very nice packaging.

BUILD QUALITY- Excellent. Wires are very strong and durable. Output is stable, no fluctuations at all.

USAGE and SAFETY - I am using 12V 2A adapter to charge this battery. This battery has maximum potential around 12.5V and all 12V 2A adapter available in the market can supply maximum 12.5V . So charging automatically stops when your battery has reached 12.5V even before the protection system kicks in. So this battery is very safe while charging.
I just use a voltmeter on the output side of the battery to measure the voltage. When it is around 12.5V, i know that my battery has been fully charged.
There is no heating issue. This runs cool while charging and discharging.