PETLIBRO Dockstream 2 Cordless vs Plug-In: Which Should You Buy?

Verdict: Choose the PETLIBRO Dockstream 2 Cordless if the spot your cat uses has no outlet nearby, or if you want the pet-activated sensor mode, which PETLIBRO lists only for the cordless version. Otherwise pick the Plug-In: it has the same 3 L tank, size and app, offers timed flow, costs less on PETLIBRO's own store and never needs charging. Each fountain tracks one cat at a time.

ChartCover of the PawCog comparison of the PETLIBRO Dockstream 2 Cordless and Plug-In: the Cordless for spots with no outlet nearby, with a sensor mode but needing recharges; the Plug-In for a fixed spot by an outlet, with timed flow and no charging.

PETLIBRO Dockstream 2 Cordless vs Plug-In at a glance

All figures are PETLIBRO's own specifications, checked on October 16, 2026.

ChartTable of how the Dockstream 2 Cordless and Plug-In differ: 5200 mAh battery versus corded, a sensor mode versus a timed mode, up to 30 days per charge for one pet in sensor mode, 7 to 8 hours to charge, 1.89 versus 1.77 kg. Both have a 3 L tank.

Which version fits your home?

ChartFive questions for choosing a Dockstream 2: an outlet where your cat drinks, timed flow or a lower price point to the Plug-In; running only when your cat comes points to the Cordless; with more than one cat, the battery may run down sooner.

Choose the Cordless if:

• The best spot for your cat's water has no outlet nearby, for example a quiet corner or a stretch of wall with no socket close by. In sensor mode, PETLIBRO suggests placing the fountain against a wall, since a cat drinking from behind it may not be detected.
• You want the pet-activated sensor mode, which PETLIBRO offers only on the cordless version.
• You are fine with recharging it. PETLIBRO's 30-day figure assumes a full charge, one pet, sensor mode, and 30 drinking sessions a day of 45 seconds each.

Choose the Plug-In if:

• The fountain can sit next to an outlet.
• You want the timed flow mode, which PETLIBRO lists only for the plug-in version.
• You would rather not manage a battery, and you want the lower price. On PETLIBRO's own store the plug-in version costs less than the cordless one.

What both versions share, and their limits

The two versions use the same 3 L detachable tank, the same pump-free design (a magnetic rotor in the tank driven by a magnetic driver in the base), the same size and the same PETLIBRO app. Both have a stainless steel water tray: PETLIBRO calls the plug-in's tray dishwasher-safe, while its cordless listing does not say so, so check PETLIBRO's cleaning instructions for that version. PETLIBRO also says its 4-layer filter removes fur, heavy metals and odors.

Limits to know before buying either one:

1. Tracking covers one cat. PETLIBRO says the Dockstream 2 tracks one pet at a time and does not support RFID tags, so if several cats share it, it will not track each one separately. For that, PETLIBRO points to its Dockstream RFID model.
2. Small sips may not register. PETLIBRO says drinks under about 2 ml may not be detected on either version.
3. Filters and refills. PETLIBRO recommends a new filter every two weeks and refilling the water twice a week for one pet, and more often for several pets. The app sends reminders for both.
4. Battery with several cats. PETLIBRO says battery life may be shorter with multiple pets.

Will either version make your cat drink more?

Not necessarily. Cornell University's Feline Health Center says some cats increase their water intake when given a fountain, but individual preferences vary. A study in the Journal of Feline Medicine and Surgery gave 16 healthy laboratory cats a still bowl, a circulating bowl and a free-falling bowl in turn, two weeks each; among the 14 cats that completed it, average daily water intake did not differ significantly between bowl types. Choose a Dockstream 2 for convenience and tracking, not on the expectation that your cat will drink more. If you are worried your cat is dehydrated, Cornell advises contacting a veterinarian promptly.

FAQ

What is the Dockstream 2 battery life?

Only the Cordless version has a battery; the Plug-In is corded. PETLIBRO says the battery lasts up to 30 days on a full charge for one pet in sensor mode, based on 30 drinking sessions a day of 45 seconds each. With several pets, it says battery life may be shorter.

How long does the Dockstream 2 Cordless take to charge?

About 7 to 8 hours when the fountain is not running, and up to 10 hours when it is, according to PETLIBRO.

Does the Plug-In version have a sensor mode?

No. PETLIBRO lists continuous and timed flow for the plug-in version; the pet-activated sensor mode is on the cordless version.

How often should the PETLIBRO Dockstream 2 filter be changed?

PETLIBRO recommends a new filter every two weeks for one pet, and more often for several pets. It says to soak a new filter before installing it, and that a filter is still needed when you fill the tank with purified water.

Can two Dockstream 2 fountains share data?

PETLIBRO says data from several fountains is synced with a Petlibro Care subscription; without it, each fountain tracks separately.

Related guides

• Best Cat Water Fountains: How to Choose One You'll Keep Clean
• Best Automatic Cat Feeders With a Camera

How we researched

We compared PETLIBRO's official specifications and answers for both Dockstream 2 versions, checked on October 16, 2026, and added hydration context from Cornell University's Feline Health Center and a study of water intake in cats published in the Journal of Feline Medicine and Surgery. We did not buy or test these fountains. Prices change often; follow the links for the current price.

Sources

• PETLIBRO Dockstream 2 Smart Fountain
• Hydration, Cornell Feline Health Center
• Robbins MT et al., Quantified water intake in laboratory cats from still, free-falling and circulating water bowls, and its effects on selected urinary parameters, J Feline Med Surg 2019;21(8):682–690, published online October 10, 2018