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picoUPS-120-ATX DC micro UPS system / battery backup system for 12V automotive environments. The picoUPS-120-ATV is a small yet powerful UPS (uninterruptible power supply) solution. The picoUPS-120-ATV was conveniently design to be compatible with quarter brick PSU standard (58 x 36mm). The picoPSU-120-ATV ensures uninterrupted power for your electronics by automatically switching in between a DC input source (13-16V) and a Lead Acid (SLA battery). The switching in between the power sources is instantaneous, thus allowing smooth, uninterrupted device operation. The picoUPS-120-ATV also has a built-in, 1.2A fast battery charger unit. The PICOUPS-120-ATX has been specifically designed for uninterruptible small/medium power PC operation, where “always on” operating is required. Applications for the picoUPS include a wide range of systems including automotive operation.
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bought this to make an 'ultra reliable' raspberry pi; one input port will be 18vdc from a power brick; the other input is for a 12v SLA battery. the battery should be trickle charged by this board when the 'mains' is on. output of the board goes into a dc/dc boost/buck converter and that drops down to a stable 5v and finally THAT goes to my rasp. pi board. whether 18v or 12v from the 2 sources, the dc/dc limits it to the safe and standard 5v, so the whole solution works out great for me.
Use this to manage my SLA batteries for my stations, excellent. Only wish there was a low voltage cuttoff function. Also had to include a heatsink on one of the components a it heats up seriously during charging.
I am using this as a 12V UPS for my wifi-router, modem, gigabit switch and a tiny led strip. Power goes out every once in a while and this saves me a lot. The output is not regulated, which is why I rated this 4 stars, but otherwise a great item !
Reviewed in the United States on September 25, 2015
As a "UPS" this is an absolute DISASTER. Why? If you look at page 3 of manual and look for smallest font you'll see this: -Low voltage battery cut-off not provided by this module. Do you know what this means? If you use it carelessly with a lead-acid battery it will be dead in a few days because it got no overdischarge protection and it's impossible to add it because there is no emergency shutdown pin.
At first I had an issue starting the PC after the battery had died. Turns out that was fixed with a BIOS update. no other issues. I used this to add an internal UPS circuit to my HTPC hooked up to the TV in the living room. It acts as an on-demand media server for my other devices at any time, and I did not want to add another device to my small entertainment center. I like to keep a minimalist living room and this did the trick. I was able to fit the battery in the front of this case: Black Series Steel Mini ITX Computer by cutting away the mounts for the front 3.5 drive bay. I did not need it and the battery was more important than a card reader.
Il modulo preso per creare una specie di UPS DC per il router ADSL. La scheda fa quello che è dichiarato dal produttore ed è assemblata con molta cura, ma per essere chiamato UPS manca il controllo di minima di tensione dalla batteria per evitare di scaricarla in maniera irrecuperabile. Inoltre, la scheda butta fuori la tensione che riceve, che nel caso di alimentazione dalla rete con batteria in carica è di circa 14...16V, al passaggio all'alimentazione dalla batteria diventa circa 12,5 e poi scende (la batteria si scarica). Allora se volere alimentare un router WiFi o qualcosa del genere avrete necessità di collegare all'uscita di questa scheda un regolatore di tensione Buck-Boost di portata adeguata al vostro carico. Inoltre, come detto prima, andrebbe aggiunto un modulo per la protezione della batteria dall'eccessivo scaricamento se prevedete l'utilizzo a batteria per i periodi relativamente lunghi. Visto che la scheda non costa proprio poco (non facciamo polemiche sul costo di produzione, c'è un bel margine di guadagno), non so se la prossima la comprerò o me la assemblo da solo tenendo conto delle mancanze funzionali.