1-5pcs Lithium Battery Undervoltage Protection Module 15V Cutoff Over-discharge Protection Board 10A Current 18V 20V 21V
$2.29
Today it costs $2.29 on AliExpress. Since Oct 25, 2026, when we started tracking it, the price hasn't changed. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for less than a day; confirming a drop takes at least 3 days. The store advertises "was $4.88", 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
$2.29
We started tracking this price on Oct 25. The chart takes shape over the days: we only draw prices we observed.
| Store | TechHome Meter Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | 10/25/2026 |
| Last reading | 10/25/2026, 8:01:18 PM UTC |