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- USA
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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Nitecore D2 Intelligent Digi Smart Charger with LED Indicator for 14500, 16340 (RCR123), 18650, 22650, 26650, Ni-MH and Ni-Cd (AA, AAA) Battery, D21. Capable of charging 2 batteries simultaneously. 2. Each of the two battery slots monitors and charges independently. 3. Optimized charging design for IMR batteries. 4. Integrated LCD panel clearly displays charging parameters and progress. 5. Two conveniently located side buttons allow easy selection of specific battery types and charging parameters. 6. Intelligent circuitry detects the battery type and status before entering automatic charge mode
1. Capable of charging 2 batteries simultaneously.2. Each of the two battery slots monitors and charges independently.
3. Optimized charging design for IMR batteries.
4. Integrated LCD panel clearly displays charging parameters and progress.
5. Two conveniently located side buttons allow easy selection of specific battery types and charging parameters.
6. Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC, CV, dV/dt).
7. Automatically detects battery power status and selects the appropriate voltage and charge mode (with the exception of LiFePO4 batteries which require manual selection).
8. Compatible with LiFePO4 batteries.
9. Compatible with small capacity batteries.
10. Automatically stops charging when complete.
11. Features over-charge prevention to protect batteries.
12. Features temperature monitoring to prevent overheating.
13. Made from durable ABS (fire retardant / flame resistant).
14. Features reverse polarity protection.
15. Designed for optimal heat dissipation.
16. Compatible with Li-ion / IMR / LiFePO4: 10440, 14500, 16340 (RCR123), 17500, 17670, 18350, 18490, 18650, 22650, 26650, Ni-MH and Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries (Note: All batteries are not included).
17. Input voltage:
- AC 100-240V 50/60 Hz 0.25A (MAX)
- DC 12V 1A
18. Output voltage: 4.2V +/- 1% / 3.7V +/- 1% / 1.48V +/- 1%
19. Output current: 500mA x 2
20. Certified by RoHS, CE, FCC, CEC.
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 207 reviews
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Product Reviews
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Foam Mattress NEEDs Foam Pillows
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
10 stars!! Quality foam, structure & price. Best bang for my buck.
HRV, readiness & total sleep score metrics increased drastically this week. See screenshot :)
Support:
Molds and cushions every crevice under my neck and above shoulders. So comfy
Size:
Adjustable loft but king length is perfect to hug and rest your head. Love love love. The 1st 2 nights were uncomfortable with pillow as is, first night I was up at 3am half asleep pulling foam out but wasn't enough. The second night at 2am I pulled out more stuffing. I was getting frustrated.. my Oura ring showed both nights I was awake every hour. Not good. Before the 3rd night I pulled enough to fill the bag the 2 pillows arrived in. Boom -8hrs sleep and for the first time ii years I achieved 17% Deep sleep. Huge.
Weight:
Perfect weight with adjustment. Squishy and molds to b the contour of my neck and shoulders
Softness:
Like the baby bear.. just right.
Comfort:
Very comfortable after removing 30% foam in both pillows. I actually now have enough to make a 3rd pillow, replace old foam, or adjust OGs, Still to early to measure.
If you have a foam mattress that contours your body but not your head you'll end up with neck and/or back pain from head being elevated- not sinking/molding the body into a foam mattress.
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Reviewed in the United States on July 1, 2025
★★★★★ 3
These are not sized correctly - beware
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
Edit: I was going to return these pillows but the seller contacted me and offered a full refund due to the size issue without having to send the pillows back.
I am happy with this and happy to keep them on a spare queen size bed as they really are nice pillows. Just the wrong size.
pros: they are a nice pillow and the cooling feature is really great, and you can adjust to your liking
cons: absolutely wrong size. Ordered King, tag says king, all measurements on listing and tag say 20x36, in reality they are more like 20x30. Definitely Queen pillows being sold as King.
I did not see any reviews at first about size issues but after I got these and did a search it does look like others have had the same problem.
A shame, would have given them a great review if they were the correct size
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Cool and comfy
Color: Blue-ice Plus, Size: King(Pack of 1)
Great pillow. Keeps you cool.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Really Good Cooling Pillows for Sleeping
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
These cooling pillows are very soft and provide excellent support for your head and neck. They are adjustable by taking our the stuffing if you need them to be more flat or less firm. The look great and comes in a pack of two which is a great value. During use, I did notice they have great shape retention and it does not take them long to return to their fluffy full shape. I am a hot sleeper and these do keep your head cool - just be aware using a pillow cover does reduce the cool ability but this allows you to adjust for weather like during winters to add a pillow case for extra warmth. Very happy with this purchase and got a second set to replace my old pillows.
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Reviewed in the United States on April 28, 2026
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