APC Back-UPS Pro 900 - UPS - 540 Watt - 900 VA

Always had APCs, but online / fully metallic older versions. So I wanted to protect my AV and purchased the 900VA unit - locally from authorized reseller. In the first month, the smell was not very easy to tolerate. In a big living room, you could sense from 3 meters away. Had to air the room frequently. Smell was something unclear like plastic, iodine and sulfur...? Plastics, circuitry, batteries? Hope not harmful. They told me from the shop that it 'll go away. And it did gradually after first month. Now, more than a year, you must be very close to smell something. But, yes there is a residual. Then, there is a constant buzz, when under normal operation with full batteries. Which slightly pitches up and down, probably due to the AVR circuity? In a big room you cannot hear, must go 1 meter close. But in a confined quiet office space, you could. APC support was really very accommodating. They told me noise is normal. But for the smell, they asked me if to replace last month. I was skeptical to do so, not wanting to have the smell issue from the start.... I want another UPS now and I 'll try a different brand, with no AVR but better transfer time.

i usually don't write reviews. even if the product is bad i just tend to refund it. i got recommend this UPS recently by a colleague and i bought it given the recent blackouts i have been experiencing. NOT THIS TIME. this product may as well be a freaking boombox. the static sound and the bumping noises it makes drive me crazy, even 2 rooms ovewr i hear it. it disturbs my sleep. it bothers my cat. it bothers ME. BUT ONE THING it is GUARANTEED to give are migraines. i sent the last 7 hours trying to fix this issue with absolutely no success whatsoever. DO NOT BUY UNLESS YOU'RE DEAF

Très bon onduleur ! Le APC Back-UPS PRO fait super bien son taf : fiable, réactif et rassurant en cas de coupure. Le logiciel de gestion est pratique et les 6 prises FR sont bien pensées. Il fait un peu de bruit, mais rien de gênant. Solide et efficace, bref, un achat que je ne regrette pas !

Excellent produit. Il permet de faire un shudown en douceur lors d'une panne de courant pour ne pas abîmer vos disques. Idéal pour un NAS Peut être utilisé pour un PC Avantage : le changement de batterie est prévu et facile. Une belle économie APC est une des meilleures marques, 100% compatible avec Synology

Ha sido enchufarlo y listo. El Synology lo ha reconocido al momento.

tres bon produit ,utiliser pour mes modem ,Synology et pc