Activ Life
✓Price
$25.34
Demeras Battery Holder Waterproof Battery Case Dual USB/DC Interface for Bicycle Light
★★★★★
$25.34
Quantity
1
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About this item
- WATERPROOF AND The battery holder is waterproof, ensuring long-term use. This battery case can be charged with 4x18650 batteries and used in combination with batteries powered by bicycle lights.
- WITH DC CONNECTOR INPUT When the battery holder has a DC connector input, the output voltage is 8.4V. The USB connector has an output voltage of 5V and a current of 2A.
- MULTIPLE FUNCTIONS The battery holder has a mobile phone charging function. With a power display function. You can use two or four lithium batteries.
- OTHER STANDARDS Output voltage: 8.4V, input voltage: 8.4V. With the DC connector input, the output voltage is 8.4V. The USB connector has an output voltage of 5V and a current of 3A, and it has a mobile phone charging function.
- PLEASE NOTE The USB interface is suitable for connecting a bicycle light, headlamp, or for charging a mobile phone in an emergency as a power bank. When installing batteries, please strictly follow the negative and positive directions to avoid damaging this storage box.
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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