Boasting a 5,000mAh capacity and 5A discharge rate, the Samsung 50E is an incredibly reliable 21700 cell. It's button-top terminal and protective circuitry makes it ideal for use in flashlights, powerbanks, and other portable electronics.
Utilizing li-ion INR (LiNiMnCoO2) chemistry, this battery is stable, has a three year shelf life, and is of course rechargeable. In fact, the 50E li-ion battery is rated for at least 500 charging cycles, and charges up in just three hours on average.
You can check out our selection of 21700 chargers.
| Brand | Samsung |
| SKU | SAMSUNG-50E-21700-BUTTON |
| Size | 21700 |
| Voltage | 3.6/3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 5000 |
| Chemistry | Li-Ion |
| Sub-Chemistry | LiNiMnCoO2 INR / NMC |
| Shelf Life | 3 Years |
| Packaging | Contractor Pack |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
| 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 | 14.7 |
| Length | 2.95 in (75 mm) |
| Diameter | 0.82 in (21 mm) |
| Weight | 2.45 oz (69 g) |
| Length | 2.93 in |
| Width | 0.92 in |
| Height | 0.92 in |
| Shipping Weight | 0.16 lb |
| Packaging | Contractor Pack |
| Warranty | Battery Junction Warranty |
| Return Policy | Return Policy |
Overall rating: 3.6 / 5 from 5 reviews.
Review topics: [].
"I'm using these batteries in custom Meshcore/Meshtastic solar nodes. The strip going down the side of the battery and the base of the protection circuit (bottom of battery), are ideal places to solder wires. Throw on an extra layer of heat shrink and you have a little battery pack without needing special holders."
"I haven't used them yet but they seem to be of good quality. Decently fast shipping and well packaged."
"These batteries are too long for 2 of my Astrolux lights and a Klarus light. In the Astrolux EC06 (Sofirn Q8) the high pressure exerted when trying to get these batteries to fit causes the light to be inoperable. In the Klarus light--again--the high pressure created by threading the body to the head of the light over-compresses the spring to the point that it's a concern. This light worked with the battery installed, but the exceedingly tight fit presents problems. Also Battery Junction charges a 15% restocking fee to return over $60 worth of batteries that, in my experience, offer a poor fit at best."
"Very good battery at a greater price. This runs my flashlight at greater than advertised run times because of the higher power."
"Can't handle a Fenix TK 16 flashlight on it's brightest setting. needs to be charged to reset the protection."
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