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DC 12V/15V 50W 4A USP Uninterruptible Power Supply Step-Up Protection Board for 2S/3S Lithium Battery Charging
Quick answer
Is $4.05 a good price for DC 12V/15V 50W 4A USP Uninterruptible Power Supply Step-Up…?
It is the usual price, not a deal: $4.05 is in line with the typical price of $4.09 that DipScout measured over the last 14 days. It is the lowest in 19 days, but it has held this price since Nov 6, 2026.
$4.05
Today it costs $4.05 on AliExpress. Since Oct 24, 2026, when we started tracking it, it ranged from $4.05 to $4.69. It's the lowest price in 19 days, but it has been at this value since Nov 6, 2026; by our price history that is already the normal price, not a sale. Price checked on Nov 11, 2026, 21:10 UTC.
No drop compared with what we observed over the last 14 days. The store advertises "was $9.76", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$4.05lowest ever seen
Lowest$4.05since Nov 6
Highest$4.69Nov 1 to Nov 2
Tracked since Oct 24 · 4 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 6, 15:14 UTC | $4.05 | −1.0% |
| Nov 4, 16:07 UTC | $4.09 | −9% |
| Nov 2, 19:14 UTC | $4.49 | −4% |
| Nov 1, 01:12 UTC | $4.69 | +4% |
| Oct 24, 20:19 UTC | $4.49 | start |
| Store | Great IT electronic components co., LTD Store |
|---|---|
| Positive feedback (AliExpress) | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Sold | 69 |
| Recorded readings | 5 |
| First seen | |
| Last reading |