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Charmast 10,400.
10,400mah · digital display · usb-c & usb-a. Built for everyday carry.
10,400MAH · 3 PORTS · LED
J$5,500Buy 3+ of the same item save 5% · 10+ save 10%Only 1 left
CAPACITY
CAPACITY
10,400mAh
PORTS
USB-C · USB-A · Micro
SPEED
2× fast
WARRANTY
14-day + manufacturer
Charges your devices
Estimated full charges from 10,400mAh (real-world, after conversion losses).
iPhone 15≈2×
Samsung S24≈1.7×
iPad 10.9"≈0.89×
Care & best practices
Get the longest life and best performance from your Charmast 10,400.
- ✓Charge it to full before first use, then top up whenever it drops below ~20%.
- ✓Keep it out of hot cars and direct sun. Heat is the number-one killer of battery life.
- ✓Storing it for a while? Leave it around 50% and recharge every 2–3 months.
- ✓Recharge it with a good USB-C cable and a proper wall charger for the fastest refill.
Reviews
★★★★★5.0 · 2 REVIEWS
★★★★★
This is a great product!
M D · JUL 2026 · VERIFIED PURCHASE
★★★★★
The Charmast 10,400 gets me through two full days on one charge. The LED read-out is a nice touch — no more guessing.
RENÉE B. · JUL 2026 · VERIFIED PURCHASE
10,400mAh
BATTERY CAPACITY
USB-C · USB-A · Micro
PORTS
2× fast
CHARGING SPEED