Output Adapter BL1830 BL1840 BL1850 For MT 18V/21V Li-ion Battery Adapter DIY Battery Cable Connector
Quick answer
Is $4.25 a good price for Output Adapter BL1830 BL1840 BL1850 For MT 18V/21V Li-ion Battery…?
It is the usual price, not a deal: $4.25 is in line with the typical price of $4.25 that DipScout measured over the last 14 days. Tracked since Oct 23, 2026, it ranged from $3.95 to $4.25.
$4.25
Today it costs $4.25 on AliExpress. Since Oct 23, 2026, when we started tracking it, it ranged from $3.95 to $4.25. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 14 days. The store advertises "was $9.04", 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$4.25on Nov 7
Lowest$3.95Nov 4 to Nov 5
Highest$4.25Nov 5 to Nov 7
Tracked since Oct 23 · 3 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 5, 08:01 UTC | $4.25 | +8% |
| Nov 4, 08:01 UTC | $3.95 | −1% |
| Oct 28, 17:11 UTC | $3.99 | +1% |
| Oct 23, 08:14 UTC | $3.95 | start |
| Store | Home Improvement Tools Cars Motorcycles Store |
|---|---|
| Positive feedback (AliExpress) | 96.7% |
| AliExpress category | Tools › Power Tools |
| Sold | 18 |
| Recorded readings | 4 |
| First seen | |
| Last reading |
Also sold by 1 other store
Same title and category on AliExpress, cheapest first. Each store has its own price and history; check the variant and shipping.
| Home Improvement Tools Cars Motorcycles Store · Ships from US | $4.25 · 18 sold |
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