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Product comments of levi_pl

Car-PC picoPSU-120-WI-25V DC/DC PC ATX power supply (Fanless, 120 Watt) picoPSU-120-WI-25V DC/DC PC ATX power supply (Fanless, 120 Watt)
 | 22.07.2009
Best thing about this PSU is that it can run from battery.
I paired it with buffered PSU (power-one) which can deliver up to 6 A @ 13.8 V and has 14 Ah battery attached. My set (EPIA SN1000+1GB RAM + 4 x WD10EADS + PQI 8GB CF + Senao NMP-3601 miniPCI WI-FI, Linksys SD2008 8 port gigabit switch* and siemens DSL bridge*) can run 6 hours on battery ! Then it takes about the same to recharge it... Now I'm experimenting with better first stage PSU to be able to use 65 Ah battery (~ 24 h battery power !)

After careful calculations and tuning both hardware and software (Linux Debian) I'm able to run four 3,5'' drives on this PSU. Amperage never exceeds 3,5 A (mostly startup) and is ~ 1,3A (18 W) in average.

Total usage is ~263 kWh yearly (computer running 24hpd) which roughly translates to 65 euros (depending on location) electricity bill per year.

*) both switch and bridge are powered directly from first stage psu at 13,8V they draw less than 0,7A average