Fenix ARB-L21-4000P Rechargeable 21700 Battery

Fenix ARB-L21-4000P Rechargeable 21700 Battery

Marsoni

M251S

$27.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Fenix ARB-L21-4000P Rechargeable 21700 BatteryThe ARB L21 4000P battery supports large current output making it ideal for powering lights and other items that are operated at higher power loads. The maximum current for the ARB L21 4000P is 18A, with a continuous output current of 10A. The higher current allows the 21700 battery longer runtimes at higher levels in flashlights. As with all Fenix rechargeable batteries, the 21700 4000 mAH has three sets of overheat protection, including pressure

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I bought this for our third year wedding anniversary, as a gift for my husband. The 3rd year is supposed to be a gift inspired by leather. The tray is very durable and has lots of compartments. My husband uses it on his nightstand to keep things that he has in his pocket when he empties them the end of the night. The wireless charger is very convenient, although he prefers to actually plug in his phone rather than wirelessly charge it. The charger cable itself is surprisingly of great quality. The leather isn’t too bad either. Good gift for the price point.

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Reviewed in the United States on July 29, 2025

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DSLR user

Houston, US

★★★★★ 5

Organizer tray

Color: Brown +Wireless

This thing's style is 1960's cool.. Great organizer and charger.

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Reviewed in the United States on January 24, 2026

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Danny Wilcoxx

Lowell, US

★★★★★ 5

Cute Tray, Bad Charger

Color: Black

Worked for about a month, now it will only charge sometimes. Edit: Seller contacted me and replaced item. It is working perfectly fine now.

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Reviewed in the United States on March 28, 2025

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jessie

Grantham, US

★★★★★ 3

The charger is slow

Color: Brown +Wireless

Looks great but the charging takes forever

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Reviewed in the United States on May 18, 2026

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Jack Leitner

Phoenix, US

★★★★★ 5

Nice Valet tray with Qi standard charger USB-C

Color: Best Dad-brown

I like this valet tray. I'm not fond of the message in the main compartment of the valet tray. It means they expect someone to buy it for their dad. I bought it for myself. What I like is the Qi standard compatibility of the wireless charger. It has many advantages over the wireless chargers that are sold. Most are round circles, so your phone teeters on the odd design. Some want to attach to my phone with some magnetic gimmickry. This valet tray takes a different approach. It has a built-in Qi standard wireless charger that's in a rectangular compartment. The USB-C wire that is USB-C at both ends is faster; that's the advantage of USB-C. It carries more power and higher data speed. But the Qi standard disables charging when the phone is at 100%. This avoids overcharging. It's an excellent design. The charging port is built-in to the side of the valet tray. Just the placement of the indicator light is under the phone. A fully charged phone doesn't trigger charging. It avoids overcharging. There is drawback the shallow USB port doesn't allow proper seating of USB C plugs this puts a lot of weight on a barely plugged wire.

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Reviewed in the United States on September 19, 2025