Lithium Battery AC 21V 2A Safe Power Supply Adapter Lithiumion Battery
Deal ended. This listing left the AliExpress affiliate program. The history below is still valid; the current price isn't.
$3.95
We have tracked this product for 5 days; confirming a drop takes at least 7 days. The store advertises "was $7.90", 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$3.95on Oct 26
Lowest$3.75Oct 23 to Oct 24
Highest$3.95Oct 24 to Oct 26
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, 00:06 UTC | $3.95 | +5% |
| Oct 23, 01:59 UTC | $3.75 | start |
| Store | Stone's Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Consumer Electronics › Accessories & Parts |
| Recorded readings | 2 |
| First seen | 10/23/2026 |
| Last reading | 10/27/2026, 3:11:06 AM UTC |