Advice UPS teardown

[singera]

hey to all

I got last week Advice 650VA PRV UPS that need to replace his battery (my work bought a new one from the same model and throught this one) I will bring this unit to my girl friend after I will replace the battery (12V 7AH).
my computer is connected to the older version Advice 650VA PRPC UPS but it better (and also need a new BATT).

PRV on left PRPC on right:



PRV has On/Off SW PRPC has multi function switch (On/Off, test, alarm off).
PRV has 3 LED PRPC has one single color multi function led.

PRPC BACK:



has IEC fused input, two IEC out, modem line/ethrnet suge protection, USB control on main board.

PRV BACK:



has IEC fused input, 4 IEC out,  USB control on daughter board.

PRPC inside:



has multi tap transformer for voltage regulator.

PRV inside:

has single tap transformer but much smaller.

the PRPC model is from 2006.
the PRV model is from 2009.