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BTBAI® (10 Pieces) 5000mAh 3.7V 18650 NCR Rechargeable Li-ion Battery Pack Cell For Ultrafire TrustFire CREE XM-L T6 LED Flashlight Flash Light Torch

by BTBAI®

Price: £19.98 FREE UK delivery.
Only 15 left in stock.
Dispatched from and sold by JUSTDO.
  • Package Details: 10x 18650 Rechargeable Li-ion Battery
  • Type: Li-ion Battery; Capacity: 5000 mAh; Voltage: 3.7 V; 12 Months Warranty
  • 100% Q.C. of every battery 100% New A+ Cell ; No memory effect, Recharge up to 2000 cycles
  • Dimensions : 65*18.24MM (+/-0.05)mm ; Weight : 38g
  • Perfect for LED Flashlight Torch Laser Pointer

Frequently Bought Together

BTBAI® (10 Pieces) 5000mAh 3.7V 18650 NCR Rechargeable Li-ion Battery Pack Cell For Ultrafire TrustFire CREE XM-L T6 LED Flashlight Flash Light Torch + New Trustfire Tr-003 10430, 10440, 14500, 16340 (CR123A)17500, 17670, 18500, 18650 4ch Battery Charger Li-ion Batteries + NEW Trustfire Searchlight High-power Super Bright 8000 Lumens 6x Cree Xm-l T6 LED Flashlight Searchlight 18650
Price For All Three: £77.54

These items are dispatched from and sold by different sellers.

Buy the selected items together


Product details

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  • ASIN: B00EYVBS3E
  • Date first available at Amazon.co.uk: 4 Sep 2013
  • Average Customer Review: 3.6 out of 5 stars  See all reviews (16 customer reviews)
  • Amazon Bestsellers Rank: 3,164 in Electronics (See Top 100 in Electronics)

Product Description

CONTAINS:

» 18650 Battery x10

» Tracking number x1

INFORMATION:

- 10x NCR 18650 3.7V 5000mAh Li-ion Rechargeable Battery

- Low discharge rate, no memory effect

- Widely used on torch, laser pointer, as emergency lighting and other portable devices

-No memory effect, recharge up to 2000 cycles

-100% quality Japanese battery cells

- 100% Q.C. of every battery

- Manufactured by Hi-Capacity power products

Specification:

Material: Li-ion Battery

Voltage: 3.7V

Capacity: 5000mAh

Size: 66x18mm

Weight: 32 g


Customer Questions & Answers

Customer Reviews

3.6 out of 5 stars

Most Helpful Customer Reviews

10 of 10 people found the following review helpful By Pentaxian on 14 May 2014
Verified Purchase
It was interesting reading previous reviews on this product; I came to the conclusion that some of the purchasers did not know what they were ordering or understand the technology.

For those of you looking for AAs. don't buy these! Eighteen Six Fifties are much bigger (18mm diameter by 650mm long) and more than double the voltage due to their lithium chemistry. And as for those who wonder about why you should buy cells that are not sold in shops, all I can say is, please join the twenty first century; these are the cells that power your laptop and it is about time Duracell et.al. started phasing out the old alkaline and zinc-carbon technology cell/batteries.

As for these cells: I chose these because they're described as being of Japanese manufacture even though they're shipped from China. Assuming this is correct, this would mean that a Chinese company is adding PCBs to Japanese cells. Strangely you never see PCBs added to cells in Japan. I decided to try these cells because Japanese cells usually contain the claimed capacity.

As for their actual capacity: I decide to see how long they would run my so called 3800Lm torch. This test makes a few assumptions:
1. the torch has 3 XML-T6s. this poses a problem because it is impossible to obtain more than 1000Lm from an XML-T6 but Chinese manufacturers like to claim by extrapolation higher light output once they push the LEDs past 10W. If this is the case then you can assume the torch is running at about 38W.
2. if we use 3.7V as the average voltage when in use then you get a clamed capacity of 18.5Wh per cell and therefore my torch contained a total capacity of 55.5Wh
This should be enough to run the torch for 1.46 hours (87.6 minutes) but the cells could only drive it for 35 minutes.
Read more ›
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9 of 9 people found the following review helpful By spot on on 3 Oct 2013
Verified Purchase
Arrived within time well packed 11 in box, mistake or just good business. Have charged them all and have had no problems they are protected circuit batteries. Have changed from AAA batteries in my grandsons torch and the result is very positive much brighter light. Intend to use them on holiday end Oct/December where I shall be using them in my cree head torch which I am using 2500mAh batteries at present.
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3 of 3 people found the following review helpful By SXB on 30 April 2014
Verified Purchase
These seem cheaper than ultra fire batteries but last almost as long - capacity is slightly less but still the power is as good - that's why the 10 pack is my preferred choice. Number of recharges is very good as well. I use these every day and have charged them over 100 times already.

Very good
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2 of 2 people found the following review helpful By Roger T on 15 Mar 2014
Verified Purchase
These batteries seem to work well in high power torches. 8 days to deliver from China so well done to JUST DO for supplying my latest batteries at a much cheaper price than others offered for sale by other Amazon suppliers
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1 of 1 people found the following review helpful By Jong on 9 May 2014
Verified Purchase
Don't last, very light weight which points to how much li-ion is in the battery, 30g compared to a trust fire 38g.
The stated 5000mAh power rating must be taken with a pinch of salt.
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By Mkd on 19 May 2014
Verified Purchase
Now would need time, a few months to properly test it out, but it seems to suit my requirements will keep you posted.
Sorry I have bought many items off Amazon and to write a review each time, when it demands 20 words at least, takes up at lot of my time.
Maybe it would be best that a tick section be installed on the system that would offer a review which would not take up to much time from the customer.
Or maybe 4 or 5 stars should say a lot on their own.
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By Colin B. on 27 Sep 2014
Utter CRAP!!!!!!!!!
Purchased these as in upgrade to Ultrafire 4000 mah's. They don't last a quarter of the time and they quit working after a couple of weeks.
Look for ultra fires with gold top and bottoms, at 4000 mah. They're more expensive but will last longer in terms of both charge and in terms of recharging, and will save you money long term.
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Verified Purchase
I have brought this type of battery before and it is as good as them, but was cheaper and works just as well. So I will keep note of web site if I need any more in future. It runs torches that use this type of battery running for ages very good life on them.
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