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 charging USB-C connector. It can be charged by connecting the cable to the USB-C connector (e.g. from a computer, power bank or mobile phone charger) or in a classic Li-ion charger.Rechargeable batteries Fenix 21700 5000 mAh (ARB-L21-5000U) with protective electronics (protected) are based on top technology LiNiCoO2, which brings higher safety and also a longer service life.
Fenix battery protection consists of internal safety mechanisms and protective electronics. The added electronic circuits prevent the cell from being overcharged, its excessive discharge, as well as a short circuit or excessively high current consumption. If the battery electronics evaluates reaching the limit values, it safely disconnects the cell.
The internal protection consists of a separator, the most modern protection against overheating (PTC - Positive Temperature Coefficient) and a special anti-explosion valve. If the gas pressure in the cell exceeds a certain limit, the internal separator separates the electrodes inside the battery and thus de-facto interrupts the exothermic reaction, and the anti-explosion valve releases the excess gas pressure outside the battery. Thanks to the combination of electronic and mechanical (temperature and pressure) protection, Fenix batteries are among the safest Li-ion batteries available.
This battery is intended, for example, for use in the Fenix HT18, PD36R, PD36 TAC, PD40R, TK22 V2.0, TK22 UE, E35 V3.0 and C7 LED lights.
However, it cannot be used in 18650 battery lights due to its larger dimensions!
Due to the length of the battery of 76 millimeters (including protective electronics), it can only be charged in chargers that are adapted to this length. Viď. recommended chargers below.
Charging via USB-C connector
Plug the USB cable into the side USB-C connector, during charging the light at the plus pole of the battery lights up red. It lights up blue when fully charged. The charging cable is not included in the package. If necessary, you can buy a basic USB-C cable or a colored USB-C cable, or you can use a reduction from micro-USB to USB-C.Recommended chargers
The battery can also be charged in chargers for Li-ion batteries type 21700:- Charger Fenix ARE-A2
- Fenix ARE-D1 USB charger
- Fenix ARE-D2 USB charger
- Charger Fenix ARE-A4
- USB charger SC1
- Eight-channel USB charger VC8
Warning
- If possible, do not discharge the battery below 2.5 V
- Do not short-circuit the battery (do not connect the poles of the cell with a wire)
- Do not throw the battery into fire or water
- Never insert the battery into the charger upside down (opposite polarities)
- When using the accumulator, pay attention to the safety principles
- 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)
22.99 €
-11%
RRP 25.99 €
Sale savings SKS Blade mudguard set, 29"/27.5"+, black/green
32.99 €
savings
RRP 47.99 €
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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.
Automatically translated
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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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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