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Samsung 25R 18650 20A Flat Top 2500mAh Battery - Genuine - Wholesale Discount

Samsung

$ 4.89
517 reviews

SKU: samsung25r_qty1

This product is eligible for further discounts depending on how many you buy! You can purchase other products in the same category (batteries, chargers, or accessories) and it will add to the wholesale discount. Add some products to your cart to test!


Genuine Samsung INR18650-25R 2500mAh batteries are a great battery cell that can handle some really high current at a great price.  This is the 25R6, the newest version of the green 25R.  Note this is even newer than the 25R5.  The 25R is one of our favorites from our testing at high currents.  The 20A rating is very conservative and they tend to outperform other 20A batteries.  The problem is there are many counterfeits on the market but you can be sure these 25R's are genuine.  We've done extensive testing to be sure they're authentic so you can be confident you've got the real thing. 

Samsung 25R Datasheet

There are both a Korean made and Malaysian made version of this cell.  The Malaysian one says "25RM" while the Korean one just says "25R".  These are made to the same specification and perform the same so you may receive either one from us.  If you require a certain version you can contact us to see which we have in stock. 

Specs:

  • Chemistry:  INR
  • Max Continuous Discharging Current: 20A
  • Max Pulse current (less than one second pulse):  100A
  • Typical Capacity: 2500mAh
  • Style:  Flat top
  • Approximate Dimensions: 64.85 ± 0.15 mm (L) x 18.33 ± 0.07mm (D) 
  • Weight: 43-45g
  • Discharge cut-off voltage: 2.5V
  • Voltage: 3.6V
  • Full Charge Voltage: 4.2V ± 0.05V
  • Origin:  South Korea

Batteries are sold individually.

If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.

Manufacturer ratings: Please see more information regarding manufacturer ratings here.

Battery Warning

Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

Here are a few tips:

  • Never completely discharge batteries (below 2.5V under load or 3V unloaded)
  • Charge fully (to 4.2V) before first use
  • Never charge batteries to 4.3V or above
  • Do not charge unattended
  • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
  • If you must store your battery, only store in a case or individual box in a cool and dry place at approximately 3.6-3.7V
  • Use only high quality battery chargers
  • Do not expose to heat
  • Do not connect the positive contact to the negative contact without an appropriate load
  • Never exceed the battery's specifications
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
  • Always charge these batteries on and within fireproof material
  • Never leave rechargeable batteries in a recharging station unattended
  • Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
  • Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
  • Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
  • If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
  • If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

Customer Reviews
4.8 Based on 517 Reviews
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Filter Reviews:
MH
08/08/2017
Michael H.
United States
  • What device/application do you use this with? My Wismec predator 228 and my Wismec RX 300
Battery

Love the new Samsung 30Q batteries and the 6bay EFest charger

Liion Wholesale Batteries Samsung 25R 18650 20A Flat Top 2500mAh Battery - Genuine - Wholesale Discount Review
AH
08/03/2017
Angela H.
United States
  • What device/application do you use this with? Smok Alien 220W
Perfect

Works perfectly in my vape. Long lasting. Charges quickly in external charger. Great price! Best around! Will definitely buy from this company again if need be!

Liion Wholesale Batteries Samsung 25R 18650 20A Flat Top 2500mAh Battery - Genuine - Wholesale Discount Review
KC
01/22/2021
Kim C.
United States United States
  • What device/application do you use this with? Vape and now flashlight that was gifted to me.
Great price and awesome gift!

Great product even better gift came with it! A really bright led flashlight from you guys.

KG
01/19/2021
Kurt G.
United States United States
  • What device/application do you use this with? Flashlight
A

Bought these for a hunting light, have not tried them yet in the field but they seem good from what I've used them so far. No issues with the ordering or delivery.

CF
01/18/2021
Chris F.
United States United States
  • What device/application do you use this with? multi cell protected circuit
Samsung 25R is still one of the best at a reasonable cost.

I ordered 20 of these and was worried that I may have received a couple of defective cells. After recharging the suspect cells a second time, it appears that they are now behaving. Although it has been quite a while since my last order, the quality of product and LIION are still just as reliable as I remembered. Thanks!


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