charmast Portable Charger Built-in Cables
20000mAh Power Bank 6-Output
Price went up recentlyRose from $35.99 to $39.99 on October 28, 2026.
at Amazon· sold by Chen Ying Ke Ji
Above the middle of our record.
Go to Amazon$39.99 is above the middle of our record.
On November 2, 2026 the charmast Portable Charger costs $39.99 at Amazon, sold by Chen Ying Ke Ji. Its usual price over the 50 days we have recorded since September 14, 2026 is $36.99; the lowest we recorded was $35.99, on September 14, 2026.
The middle price across the 50 days we have watched it, counting the days a limited-time deal was running, was $36.99. That is $3.00 less than today. It reached $35.99 at least once in that time, and the high was $39.99.
Today's price is $3.00 above its usual $36.99.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history since September 14, 2026 (50 days)
One line: the best price any tracked retailer charged, per day.
Price set by a third-party seller, not the retailer itselfLightning or limited-time dealDeal for Prime members only
Shaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $39.99 | $35.99 on Sep 14 | $39.99 on Sep 23 | $36.99 | $37.67 | 50 |
- 30 days
- $35.99 on Oct 14
- All time
- $35.99 on Sep 14
Next time, from Amazon: change amazon.com to basketprice.com in a product’s address. This one is basketprice.com/dp/B0CJBRBTVV.
Sales events
Next on the calendar: Black Friday, likely November 19–30. We keep checking this price through it and report here what it did.
Waiting for a sale? How often prices for chargers, power banks & storage move, and how far they swing, beside every other category we track.
Has charmast Portable Charger dropped in price?
- No: $4.00 more than the $35.99 it cost on October 14, 2026: this price went up, not down.
- Not once below its usual $36.99 in the 50 days we have watched it here.
Computed from our own checks at Amazon as of November 2, 2026. No line here uses a price a retailer told us about.
Where to buy
- Held for
- 5d
- Their 50-day low
- $35.99
- Checked
- 3h ago
Prices checked at least every 20 hours; “held for” is how long that retailer has been charging this price. How we check prices.
We earn a commission on purchases. It never affects our rankings.
What it is
5 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Color
- Purple
- Weight
- 0.75 pounds
- Dimensions
- 6.3 × 2.85 × 0.75 inches
- Model
- C2065
- Warranty
- 36-Month Warranty
Cheaper in Charging & Storage, and what changes
Things we track on the same shelf for at least 10% less than $39.99, with the attributes the retailers describe differently. Their words, not our judgement: we record prices, we do not test products.
INIU10000mAh 45W Fast Charging Portable Charger$23.99 at Amazon $16.00 lessWeight: 0.51 pounds instead of 0.75 poundsDimensions: 5.26 × 2.7 × 0.5 inches instead of 6.3 × 2.85 × 0.75 inches
INIUPortable Charger$26.95 at Amazon $13.04 lessDimensions: 4.1 × 2.8 × 1.2 inches instead of 6.3 × 2.85 × 0.75 inchesWarranty: 3 Years Warranty instead of 36-Month Warranty
OHOVIVPortable Charger$30.66 at Amazon $9.33 lessDimensions: 5.82 × 2.83 × 1.18 inches instead of 6.3 × 2.85 × 0.75 inchesWarranty: 12 months instead of 36-Month Warranty
Every change we recorded at Amazon
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Price | Change |
|---|---|---|
| · 5d ago | $39.99 | +$4.00 |
| · 19d ago | $35.99 | −$1.00 |
| · 27d ago | $36.99 | −$3.00 |
| · 40d ago | $39.99 | +$4.00 |
| · 49d ago | $35.99 | first seen |
Others we track in Charging & Storage
See all Charging & Storage prices
$39.99
at Amazon · we earn a commission