Product comparison · 2 uninterruptible power supplies (upss)

FSP ST 1200 vs FSP ST 850

Key differences

Differences highlightedShow differences only

Comparison of ST 1200, ST 850
40 specifications	A FSP ST 1200 View product	B FSP ST 850 View product
Features2 differ
Output power capacityDiffers	1.2 kVA	0.85 kVA
Output powerDiffers	720 W	510 W
Power source typeKnown for one	Unknown — not stated by the source	AC
Battery2 differ
Battery capacityDiffers	18 Ah	9 Ah
Number of battery cellsDiffers	2	1
Weight & dimensions2 differ
DepthDiffers	410 mm	288 mm
WeightDiffers	11 kg	7.6 kg

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.