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UPS Batteries Technology

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.


UPS Batteries Technology



Can someone tell me how many types of batteries used in uninterruptible power supplies? I'm gonna powering for my critical medical equipment, as far as I know is Nickel-Cadmium, Lead-Acid, and Lithium-Ion.Which one is the best?


Thank you so much for your suggestion.

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Personally, and this is just anRe: UPS Batteries Technology

Personally, and this is just an opinion, to power critical medical equipment, the battery technology isn't the issue, the quality of the inverter/charger is. Any battery technology, when properly maintained/serviced, will last it's lifetime/lifecycle (whatever that is, for that chemistry). Presumably, if this is truly critical (life-or-death) equipment, it will have an internal battery (which on it's own will be maintained/tested), and your UPS would presumably be for if grid-power went out, and you were getting ready to start up a generator.


Yet most people will say that lithium ion will be the most expensive, yet have the best storage characteristic, energy density, and low-weight (is this equipment portable?)... lithium ion usually has 3x the energy density per unit of physical space, and 1/2 the weight (some say that makes it 6x better then sla). Yet to get a "true LiIon UPS", it's not going to be cheap... as much as a few times as the equivalent energy SLA. One advantage of SLA is the ease of finding it... and most likely, if it's a  UPS for medical equipment, it'll probably use a standard RBC pack.

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