Fenix Li-ion 21700 USB-C rechargeable battery, 5000 mAh
Fenix Li-ion 21700 USB-C Rechargeable Battery
Rechargeable battery Fenix 21700 5000 mAh (ARB-L21-5000U) with its own USB-C charging connector. It can be charged by connecting a cable to the USB-C connector (e.g., from a computer, power bank, or mobile phone charger) or also in a classic Li-ion charger.Rechargeable batteries Fenix 21700 5000 mAh (ARB-L21-5000U) with protection electronics (protected) are based on cutting-edge LiNiCoO2 technology, which provides higher safety and also longer lifespan.
Fenix battery protection consists of internal safety mechanisms and protection electronics. Added electronic circuits prevent overcharging of the cell, its excessive discharge, as well as short circuits or excessive current draw. If the battery electronics detect that the limit values have been reached, it safely disconnects the cell.
Internal protection consists of a separator, state-of-the-art overheat protection (PTC - Positive Temperature Coefficient), and a special anti-explosion valve. In case the gas pressure inside the cell exceeds a certain limit, the internal separator disconnects the electrodes inside the battery, thereby effectively interrupting the exothermic reaction, and the anti-explosion valve releases the overpressure of gas outside the battery. Thanks to the combination of electronic and mechanical (thermal and pressure) protection, Fenix batteries are among the safest available Li-ion batteries.
This battery is intended, for example, for use in Fenix HT18, PD36R, PD36 TAC, PD40R, TK22 V2.0, TK22 UE, E35 V3.0 and C7 LED flashlights.
However, it cannot be used in flashlights for 18650 batteries due to its larger dimensions!
Due to the battery length of 76 millimeters (including protection electronics), it can only be charged in chargers that are designed for this length. See recommended chargers below.
Charging via USB-C connector
Plug the USB cable into the side USB-C connector; during charging, the indicator light near the positive pole of the battery glows red. After reaching full charge, it glows blue. The charging cable is not included in the package. If needed, a basic USB-C cable or a colored USB-C cable can be purchased, or a micro-USB to USB-C adapter can be used.Recommended chargers
The battery can also be charged in chargers for Li-ion batteries of the 21700 type:- Fenix ARE-A2 charger
- Fenix ARE-D1 USB charger
- Fenix ARE-D2 USB charger
- Fenix ARE-A4 charger
- SC1 USB charger
- VC8 eight-channel USB charger
Warning
- If possible, do not discharge the battery below 2.5 V
- Do not short-circuit the battery (do not connect the cell poles with a conductor)
- Do not throw the battery into fire or water
- Never insert the battery into the charger incorrectly (reversed polarity)
- When using the battery, observe safety regulations
- Use only an adequate charger supporting Li-ion batteries
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Protection against overcharge, deep discharge and short circuit (>8A). The protection circuit is attached to the positive pole
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Li-ion rechargeable batteries are characterized by very high capacity, do not suffer from memory effect or self-discharge
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Li-ion in the 21700 size are the best choice in terms of stored energy due to the dimensions and weight of the battery, they are gradually gaining ground, for example, in the automotive industry
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| Capacity | 5000 mAh (tested with a discharge current of 0.2 C with termination at a voltage of 2.5 V and a temperature of 25 °C) |
| Weight | 72.5 g |
| Nominal voltage | 3.6 V |
| Maximum current input | 8 A |
| Maximum charging current | 5 A |
| Charging current of the built-in USB-C connector | 2 A |
| Charging time | approx. 3-4 hours |
| Dimensions | 21.5 mm (diameter) x 76 mm (length) (+/- 0.5 mm) |
| Battery life | More than 500 charging cycles |
| Recommended operating temperature | 0-45 °C (charging) / -20 to + 60 °C (discharging) |
| Package contents | 1 pc of USB battery Fenix 21700 5000 mAh (ARB-L21-5000U) |
| product ID | 131806 |
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Dobrý den, je tato baterie vhodná pro světlo: Fenix BC26R nabíjecí přední světlo, 1600 lm?
Případně jakou náhradní baterii mi doporučíte.
Děkuji
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Dobry den,
ano, bateria bude sediet aj do svetla Fenix BC26R.
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Hello, can this battery be used alternatively as a power bank? If I used the connection via the usb-c port on the battery?
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Dobry den prajem,
vyrobca taketo pouzitie blizsie nespecifikuje, avsak kedze je port urceny specificky len na dobijanie, tak skor pouzitie ako klasicka powerbanka mozne zial nebude...
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Hello, is this battery compatible with the Fenix HM65R-DT headlamp? Thank you
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edit
Dobry den,
zial nie, bateria je o nieco dlhsia ako standardne vo svetle pouzivana ARB-L18-3400 - do svetla tak sediet nebude.
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Dobrý deň, je batéria kompatibilná s HM61R Amber v2.0?
Ďakujem.
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Nie, HM61R Amber v2.0 pouziva baterie velkosti 18650, napr. takuto:
https://www.mtbiker.sk/shop/elektronika-a-svetla/baterky/fenix-li-ion-18650-nabijatelna-bateria-4-000-mah-p294151.html
All the answers to questions about delivery, payment, security, returns, warranty and much else.
Sale -11% Fenix 21700 High-Current Battery, 4000 mAh, (Li-Ion)
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I don't know what to criticize, normally I don't even write reviews for such basic products unless they have a clearly fundamental flaw. Here I would like to praise the same USB-C connector as the Fenix BC26R light itself - although I do not use the battery directly to charge it and only charge through the light, so if necessary, 1 cable is enough for the light.
Automatically translatedWithout a doubt, a perfect flashlight. Those three euros are worth the possibility of external charging. The flashlight is in a plastic case, in which it is not a problem to carry it. During all-night rides, I start with this flashlight, when it runs out, I put the original flashlight in the light and charge it again. Light at full power all night.
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Nabijanie funguje ako v svietidle, tak aj samostatne. Rychlost nabijania je v porovnani s mobilmi pomala, Je to pritom rovnake ci v svietidle alebo priamo cez USB-C.
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Praktická rezervná baterka do svietidla Fénix BC26R vhodná na dlhšie bikepackingové výjazdy.
Translate by GoogleShow the originalMožnosť nabíjať samostatne cez usb C 👍
Iron reserve for light Fenix BC 26R. Two batteries for a night trip are a certainty.
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Nutnost k svitilně. Super je nabíjecí USB C samostatný vstup.
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Tieto baterie sa daj kúpiť aj lacnejšie a vo vyššej kapacite.
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Hej, za 5€ z Alixepress. Na batérií napísané 24000 mAh a potom sa vybije za 30 minút.
Translate by GoogleShow the originalQuality product, a big plus is the charging light.
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Praktický akumulátor s dobrou kapacitou a výdržou.
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fajn nabijeni primo USB-C
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fenix vyrobky su top
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Pre mňa super.
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Dobrá výdrž
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Spoľahlivá
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USB C
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Super
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