£3.99 + FREE UK delivery
In stock. Sold by Digital Save UK Ltd
Quantity:1
Add to Basket
or
Sign in to turn on 1-Click ordering.

Have one to sell? Sell on Amazon

Image Unavailable

Image not available for
Colour:
  • Sorry, this item is not available in
  • Image not available
      

2 x ULTRAFIRE 18650 PROTECTED 3.7V 3000mAh Rechargeable Battery


Price: £3.99
In stock.
Dispatched from and sold by Digital Save UK Ltd.
3 new from £3.00
Battery
  • Ultrafire 18650 3.7V 3000mAh Rechargeable Battery
  • Rechargeable Time up to 800 times
  • Dimensions : 67mm x 18mm
  • Cell Type : Li-ion, Cell Size : 18650
  • Battery Capacity :3.7V 3000mAh
See more product details

Frequently Bought Together

2 x ULTRAFIRE 18650 PROTECTED 3.7V 3000mAh Rechargeable Battery + CREE XML-T6 Led 1000 Lumens mini Flashlight Torch
Price For Both: £11.26

These items are dispatched from and sold by different sellers.

Buy the selected items together


Product Information

Pattern Name: Battery
Technical Details
Item Weight18 g
Product Dimensions7 x 4 x 2 cm
PatternBattery
Item Package Quantity1
Weight18 grams
  
Additional Information
ASINB0070QEOA4
Best Sellers Rank
Shipping Weight141 g
Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Find out more about our Delivery Rates and Returns Policy
Date First Available23 Jan 2012
  
Feedback
 

Product Description

Pattern Name: Battery

2 x Ultrafire 18650 3.7V 3000mAh Rechargeable Battery

Customer Questions & Answers

Customer Reviews

3.6 out of 5 stars
Share your thoughts with other customers

Most Helpful Customer Reviews

48 of 48 people found the following review helpful By Mnason on 6 Feb 2014
Pattern Name: Battery Verified Purchase
The batteries I received (from "Topwell") are red and grey (as in the current picture), say UltraFire on them and are labelled as 18650 and 3000mAh (no space).

I was surprised at how light they felt so I weighed them. They were 33gms whereas some older 18650 batteries I have are 46.5 gms.

With some NiMh batteries I find it is common for sellers to claim a high capacity where the batteries are actually of low capacity - and have a correspondingly low weight compared with good ones.

Does the same principle apply to Li-ion batteries?

To find out I made a test circuit (discharging though an ammeter and a 2.5 Ohm resistor) to measure capacity. As a control, I also tested one of my old 3860 batteries ("Asucell" and labelled as 3000 mAh and I measured the output at 2853 mAh - quite good for a well used 18 month old battery I'd have thought.

I then tested both of these Fire batteries and the capacity is showing up as just over 800 mAh - so less than 30% of that claimed.

I gather that one of the operations of the protection circuits in Lithium ion batteries is to prevent damage caused by discharging below 5% of capacity. I noticed that the old batteries I have cut out when voltage got too low - presumably the circuit is working, whereas these "UltraFire" batteries did not cut out so I wonder if they have any protection circuits at all.

Lithium ion batteries can be dangerous. As the 3000 mAh label is a lie, don't trust the "protected" label.

Avoid.
1 Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
13 of 13 people found the following review helpful By jeffrey on 25 Jan 2014
Pattern Name: Battery Verified Purchase
I bought six of these and only two of them work

The rest don't charge properly.
Too good to be true.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
23 of 24 people found the following review helpful By Lee on 16 Oct 2013
Pattern Name: Battery
They work but after testing them they are not 3000 mah. I would choose a different make next time due to this as it's false advertising
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
39 of 42 people found the following review helpful By Des Kane on 17 Nov 2013
Pattern Name: Battery Verified Purchase
I found the capacity of these to be nowhere near the 3000 milliamp claimed, out of curiosity I 'unwrapped' them to see if the true value may be marked somewhere, no markings but what I did find beggars belief, they're repackaged secondhand cells!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
16 of 17 people found the following review helpful By Jules 1955 on 30 Jan 2014
Pattern Name: UK Charger Verified Purchase
Exploded with a bang and flash when first plugged in. One of the plug prongs was sheared off when I removed it from the wall socket. Cannot recommend.
1 Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
51 of 56 people found the following review helpful By lurkio on 29 Aug 2013
Pattern Name: Battery Verified Purchase
I bought a cree headlamp to use when cycling to work realising it did not come with batteries i orderded two 18650 batteries as recommended I charged them the first time i used it the torch was great.Five days ago i charged the pack up only for three hours On leaving my property for some time came back to find the pack had exploded an caused asmall fire on my kitchen worktop how it did not cause unthinkable damage or injury i will never know I thought you would like to hear this and forewarn others Is there any way these could be replaced
2 Comments Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
5 of 5 people found the following review helpful By Ad-R on 11 May 2014
Pattern Name: Battery Verified Purchase
Arrived in good time. Packaging was fine. Put on charge, it didnt fully charge after hours, I did some research and found that these batteries where taken from used laptops, repackaged and resold... and on top of that, they didnt fit in the device I have.
Contacted the company, they gave me a full refund on return of the items.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
6 of 6 people found the following review helpful By des on 10 May 2014
Pattern Name: Battery Verified Purchase
Terrible purchase ' batteries are utter crap one of them blew up nearly hit my face as I was using it in my e-cig mod ' from the time I got them they where in the bin with 40 mins
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again