
Power prices and deals
UponSale tracks 158 products in this category across 157 offers from 12 stores.


Melopero MKR-Qwiic Adapter

Adafruit Mini DC/DC Step-Down (Buck) Converter – 3.3V @ 1A output

Sparkfun JST Jumper 3 Wire Assembly

Raspberry Pi 45W USB-C Power Supply US / White

Sonoff AC Adapter (For GK-200MP2-B Camera) UK

Generic 3.0V 100mA Polycrystalline Solar Cell

DFRobot MP2636 Power Booster & Charger Module

Adafruit 4 x AA Battery Holder with On/Off Switch

Generic 2x2032 Coin Cell Battery Holder-6V output with On/Off switch

Adafruit DVI Breakout Board – For HDMI Source Devices

Pololu DC Power Adapter Barrel Jack

Adafruit 8 x AA battery holder with 5.5mm/2.1mm Plug and On/Off Switch

SparkFun Battery Babysitter - LiPo Battery Manager

Raspberry Pi Official USB-C Power Supply United Kingdom / Black

Sparkfun Barrel Jack Adapter - USB to 5.5mm

Velleman Single-phase DIN rail mounted kWh meter

Velleman DIN rail WLAN relay card
Generic Raspberry Pi 4 Universelles USB-C Netzteil - 5.1V 3A

Raspberry Pi Official USB-C Power Supply United Kingdom / White

Proto-PIC Breadboard Power plate USB kit
Teknikio USB Battery Charger (LIR2032)

Velleman DIN-rail extension relay card

Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor
How we read this category
Every figure above comes from prices we observed ourselves on retailers’ public product data. A “real drop” means today’s best verified price is below the median we recorded for that product over the last 90 days — not that a store put a sale badge on it.
0 of the 158 products here currently meet our quality bar for search indexing. The rest stay visible to you but are excluded from search engines until they have enough verified offers and history to be genuinely useful.
How we calculate this
Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.
What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.
How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.
What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.
Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.