DC 5V 2.1A Mobile Power Diy Board 4.2V Charge/Discharge(boost)/battery protection/indicator module 3.7V lithium 18650
Quick answer
Is $0.66 a good price for DC 5V 2.1A Mobile Power Diy Board 4.2V…?
Too early to tell: DipScout has tracked this price for 6 days, and comparing it with a typical price takes at least 7 days. Tracked since Oct 23, 2026, it ranged from $0.65 to $0.66.
$0.66
Today it costs $0.66 on AliExpress. Since Oct 23, 2026, when we started tracking it, it ranged from $0.65 to $0.66. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 6 days; confirming a drop takes at least 7 days. The store advertises "was $1.57", 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
Last reading$0.66on Oct 25
Lowest$0.65Oct 23 to Oct 24
Highest$0.66Oct 24 to Oct 25
Tracked since Oct 23 · 1 changeHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 24, 00:07 UTC | $0.66 | +2% |
| Oct 23, 02:03 UTC | $0.65 | start |
| Store | Keshy Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 2 |
| First seen | 10/23/2026 |
| Last reading | 10/25/2026, 1:06:27 AM UTC |