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Klarus 21GT-50 INR 21700 5000mAh 3.6V Protected High-Drain 15A Lithium Ion (Li-ion) Button Top Battery
Brand:Klarus
MPN:21GT-50
- Li-ion rechargeable chemistry for reliable power in flashlights and more
- 5000mAh capacity helps deliver long runtimes on each charge
- 500+ charge cycles for a battery that lasts the long haul
- Built-in PTC protects from harm in everyday use - a safe option for electronics
- Size: 21700
- Voltage: 3.6/3.7
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 5000
- Terminal Type: Button Top
$19.95
Save $5.00Reg Price: $24.95
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Description
Klarus 21GT-50 21700 Battery
5000mAh | 15A Discharge | Button Top
Klarus comes out with some of the most power-packed cells on the market, and their first-ever 21700-sized cell is no exception. The Klarus 21GT-50 is only larger than an 18650 but boasts nearly double the power at most with an impressive 5000mAh capacity. The 15A drain will take care of most high-drain devices and can charge back up to 100% over 500 times within 2 hours. The built-in PTC keeps you and your devices safe against over-charge, over-discharge, over-current, and short-circuit accidents. Klarus recommends this 21700 battery for compatible flashlights, powerbanks & battery packs.
- Notable Features
- » Fully metal case is resistant to pressure and shock for improved durability over time
- » Battery recharges in just 2 hours with a 5000mA charging current
- » 15A continuous discharge supports high-drain devices with ease
- » Multi-layer protection, including PTC overcurrent protection, microporous insulation protection, pressure relief valve protection, and a high-performance IC protective plate for peak safety and improved performance overall
Item Details
| Brand | Klarus |
| SKU | KLARUS-21GT-50 |
| MPN | 21GT-50 |
| UPC | 6954424402824 |
| Size | 21700 |
| Voltage | 3.6/3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 5000 |
| Chemistry | Li-Ion |
| Shelf Life | 3 Years |
| Packaging | Boxed |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 21700 |
| Voltage | 3.6/3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 5000 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | No |
| Max. Discharge Rate | 15 |
Unit Dimensions
| Length | 2.98 in (76 mm) |
| Diameter | 0.85 in (22 mm) |
| Weight | 2.54 oz (72 g) |
Certifications & Transport
| Certifications/Standards | ANSI, CE, RoHS |
| Country Of Origin | China |
| HTS Code | 85076000 |
Packaging/Shipping Dimensions
| Length | 3.33 in |
| Width | 2.2 in |
| Height | 1.03 in |
| Shipping Weight | 0.21 lb |
Documents
Additional Details
| Packaging | Boxed |
| Warranty | Battery Junction Warranty |
| Return Policy | Return Policy |
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Reviews
Overall rating: 4.142857 / 5 from 14 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["charger","performance","problem","price","batteries","run"].
Review highlights
Reviews
21700 Klarus high capacity battery
"Bought an extra 21700 for my Klarus A3. No issues. A lot of capacity!"
Lasted less than a year
"Disappointed in this battery for my Klarus, this is the second one, lasted less than a year."
Perfect
"High quality battery for my flashlight. Fits perfect."
Spare battery
"Expect this spare should last as long as the original."
Not as good as past
"I have ordered this battery several times from this website and never had a n issue this is the first time that the battery performance is not good at all in the past the battery lasted 3 days with this one I am lucky to get a day and a half. And charging time has doubled. I am disappointed but I am going to try to order another one and see if I have the same issues maybe it was just one bad battery."
good
"bat works good"
Klarus 21GT-50
"Works great in my light. Yes its a little long, but matched with proper charger its a high output powerhouse."
Great for Flashlights
"I run these batteries in my Jetbeam lights. They seem to shine brighter and longer than the original 5000mAh batteries."
Excellent runtime, quality battery
"I have used the Klarus G15 flashlight over a year now and carry it almost every early morning prior to daylight. Even on the coldest mornings the performance is excellent. If I don’t use it on the brightest setting, I only have to charge it once every 2 weeks. Great battery, long run time."
Q&A
- WHAT CHARGER WILL I NEED FOR 2 BATTERIES?
- We would recommend one of the chargers in the link shown below. We have had the most luck with charging the larger 21700 batteries in these chargers. https://www.batteryjunction.com/catalogsearch/result/?q=nitecore+um
