Quick Answer: A robotic pool cleaner power supply typically costs $169.99-$444.99 for Dolphin depending on wattage and features (the shared Premier/CC Plus unit, 9995678-US-ASSY, is $209.00 at Maytronics’ own store vs. $343.99 at InyoPools — the identical part) and $382.99-$611.99 for Hayward TigerShark, tiered to match the model’s warranty length. Polaris doesn’t sell a part actually named “power supply” for its ALPHA iQ+/VRX iQ+ robots — the equivalent component is a $745.99 control box (R0866500, InyoPools), a completely different and far pricier part than the $115.99-$234.99 caddy that just holds it. Cordless robots from Aiper, Beatbot and WYBOT skip this problem entirely — they charge through a cable or dock instead of a continuous-power transformer, so there’s no power supply to fail.
If your robotic pool cleaner won’t power on at all, the power supply — the transformer box that sits on deck between the wall outlet and the robot’s cable — is one of the most expensive single points of failure on a corded machine, and one of the most commonly misordered parts because naming isn’t consistent across brands. This guide rounds up verified 2026 pricing by brand, plus the naming trap that trips up Polaris owners specifically.
Power supply prices at a glance
| Brand / model | Part | Price | Source |
|---|---|---|---|
| Dolphin — basic 180W, on/off | Power Supply | $169.99 | Maytronics official store |
| Dolphin Premier / Nautilus CC Plus — 180W weekly-timer | 9995678-US-ASSY | $209.00 official / $343.99 InyoPools | Maytronics store vs. InyoPools |
| Hayward TigerShark / SharkVac (baseline, 1-yr warranty) | 3277-280 | $382.99 | InyoPools |
| Hayward TigerShark QC (3-yr warranty) | 3276-201 | $522.99 | InyoPools |
| Hayward TigerShark Plus (3-yr warranty) | RCX30000RC | $611.99 | InyoPools |
| Polaris ALPHA iQ+ / VRX iQ+ | Control Box R0866500 | $745.99 | InyoPools |
| Polaris EPIC 8642 iQ | Power Supply R0899400 | $601.99 | InyoPools |
| Polaris 280/360/380 (pressure-side) | n/a — runs off pool pump, no electronics | n/a | — |
| Aiper / Beatbot / WYBOT (cordless) | n/a — USB-C cable or dock instead | n/a | — |
1. Dolphin power supply — the widest price range, by wattage and features
Maytronics Dolphin Power Supply (9995678-US-ASSY and other tiers)
- Maytronics' own store lists power supplies from $169.99 for a basic 180W on/off unit up to $444.99 for a Wi-Fi-enabled tier — the price difference comes down to features like a weekly timer, filter indicator, Bluetooth, or Wi-Fi connectivity, not just wattage.
- The 180W weekly-timer unit with filter indicator, 9995678-US-ASSY, is shared across the Premier and Nautilus CC Plus platforms per our own Dolphin parts research.
- Real retailer spread on that identical part number: $209.00 on sale (from $299.99 list) direct through Maytronics' own store, but $343.99 for the same part through InyoPools — a 64% difference on the same genuine part, and there's no consistent cheaper source, so check both before ordering.
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Always match the exact part number to your model before ordering — Dolphin’s power supplies aren’t universal even within the brand’s own lineup, and a wattage mismatch is a real safety issue on a device with a submerged cable, not just a compatibility inconvenience. See our Dolphin pool cleaner parts guide for the rest of the brand’s serviceable parts beyond the power supply.
2. Hayward TigerShark power supply — priced by warranty tier, not just wattage
Hayward TigerShark / SharkVac Power Supply (warranty-tiered)
- The baseline TigerShark and SharkVac share the same power supply, part 3277-280, at $382.99 through InyoPools — both carry Hayward's standard one-year robotic-cleaner warranty.
- Step up to the TigerShark QC (part 3276-201, $522.99) or the TigerShark Plus (RCX30000RC, $611.99), and the price roughly matches the jump to a three-year warranty on those two models — per Hayward's TigerShark Series documentation.
- Against a TigerShark QC's roughly $1,199-$1,202 street price, a $522.99 power supply is still nearly half the machine — worth checking your warranty status before ordering one out of pocket rather than filing a claim.
See our Hayward TigerShark QC review for full specs and current pricing on the robot itself, or the Hayward pool cleaner parts guide for the rest of the TigerShark’s serviceable components beyond the power supply.
3. Polaris — no part actually called “power supply” on the ALPHA/VRX platform, and that’s the trap
Polaris Control Box (R0866500) — the real ALPHA iQ+/VRX iQ+ power-supply equivalent
- Search "Polaris power supply" and you won't find a matching part for the ALPHA iQ+ or VRX iQ+ — Polaris calls the component that does this job a control box, R0866500, priced at $745.99 through InyoPools, per our own [Polaris parts guide](/guides/polaris-pool-cleaner-parts/).
- The real trap: a $115.99-$234.99 caddy (base or complete kit) holds the control box on deck, but it is not the same part and does not fix a robot that won't power on. Ordering a replacement caddy when the actual failure is the control box is a common, expensive mistake.
- The separately-architected EPIC 8642 iQ does use a part literally labeled a power supply — R0899400, $601.99 — a different naming convention from the ALPHA/VRX line within the same brand.
- Classic pressure-side Polaris cleaners (280, 360, 380) have no comparable part at all — they run off the pool's own pump and booster pressure rather than a low-voltage electrical supply, so this entire category of failure doesn't apply to them.
If you’re not sure which Polaris platform you own before ordering, our best Polaris pool cleaner guide covers the current lineup, or see the full Polaris ALPHA iQ+ review for model-specific detail.
Cordless brands: Aiper, Beatbot and WYBOT don’t have this part at all
If you own a cordless robot — Aiper Scuba/Surfer, any Beatbot AquaSense, or WYBOT’s A1/B1/C-series — none of the above applies. These robots charge through a USB-C cable or a docking station rather than drawing continuous power through a deck-mounted transformer, so there’s no separate power supply to fail or replace. Per Aiper’s own warranty documentation, accessories like charging docks and adapters carry a shorter 6-month coverage window than the robot itself (24-36 months depending on model) — worth knowing if a charger, not the power supply concept covered here, turns out to be the actual failure point. If the robot won’t hold a charge rather than won’t power on at all, that’s very likely the battery, not a charging accessory — see our pool cleaner battery guide for verified replacement prices across all three cordless brands.
The bottom line
Power supply pricing splits by brand more than by any other robotic pool cleaner part. Dolphin offers the widest official range ($169.99-$444.99) split across wattage and feature tiers, with a real retailer-price spread worth shopping around on the exact part number — the shared Premier/CC Plus unit alone is $209.00 direct from Maytronics but $343.99 through InyoPools. Hayward TigerShark prices track the model’s warranty length: $382.99 on the 1-year baseline TigerShark/SharkVac, up to $611.99 on the 3-year TigerShark Plus. Polaris ALPHA iQ+/VRX iQ+ owners face the trickiest naming situation: there’s no part called “power supply” at all, just a $745.99 control box that’s easy to confuse with the much cheaper caddy that merely holds it. And if you own a cordless Aiper, Beatbot, or WYBOT robot, this entire category of failure and expense doesn’t exist for you.
For the wider repair-vs-replace math across every failure type and brand, see our pool robot repair guide; for battery-specific pricing on cordless models, see the pool cleaner battery guide; and for the full Polaris parts catalog beyond the control box, see the Polaris parts guide.