Test / Review: EnerPower 14500 840mAh (Yellow)

12 posts / 0 new
Last post
HKJ
HKJ's picture
Offline
Last seen: 55 min 50 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5654
Location: Copenhagen, Denmark
Test / Review: EnerPower 14500 840mAh (Yellow)

EnerPower 14500 840mAh (Yellow)


DSC_0611

Official specifications:

  • Original Sanyo UR14500P - The best 14500 Li-Ion cell
  • With a PCB of 2A + / - 10%
  • Elevated plus-pole - Button Top



EnerPower%2014500%20840mAh%20(Yellow)-info

DSC_0610

DSC_0612DSC_0613

DSC_0614
DSC_0615
DSC_0616

EnerPower%2014500%20840mAh%20(Yellow)-Capacity

The battery has no problem keeping the capacity, even at 2A trace.

EnerPower%2014500%20840mAh%20(Yellow)-CapacityTimeHours

EnerPower%2014500%20840mAh%20(Yellow)-CapacityTime

EnerPower%2014500%20840mAh%20(Yellow)-Energy

EnerPower%2014500%20840mAh%20(Yellow)-PowerLoadTime

EnerPower%2014500%20840mAh%20(Yellow)-TripCurrent

EnerPower%2014500%20840mAh%20(Yellow)-Charge



Conclusion

There is not much to say about this battery, with a Sanyo cell inside and a protection at around 3.5A, I will call it a very good battery.



Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

Edited by: sb56637 on 08/26/2014 - 17:45
Tactical Oatmeal
Tactical Oatmeal's picture
Offline
Last seen: 4 years 8 months ago
Joined: 09/27/2012 - 00:46
Posts: 162
Location: DFW, Texas

It’s odd how the wrapper states it is an 18650 on the main label but lower down it states made in Germany with Sanyo cell UR14500! I just found that amusing.

Thanks for the review! Looks like a winner!

HKJ
HKJ's picture
Offline
Last seen: 55 min 50 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5654
Location: Copenhagen, Denmark

Tactical Oatmeal wrote:
It's odd how the wrapper states it is an 18650 on the main label but lower down it states made in Germany with Sanyo cell UR14500! I just found that amusing. Thanks for the review! Looks like a winner!

Yes, EnerPower had a typo on the label.

This makes it the smallest 18650 battery I have tested Wink:

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

F. Premens
F. Premens's picture
Offline
Last seen: 4 months 1 week ago
Joined: 08/07/2012 - 17:20
Posts: 19

Thanks for the review. Wink

BetweenRides
BetweenRides's picture
Offline
Last seen: 4 years 3 weeks ago
Joined: 01/02/2011 - 10:34
Posts: 2960
Location: Chicagoland, USA

Thanks, HKJ.

HKJ
HKJ's picture
Offline
Last seen: 55 min 50 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5654
Location: Copenhagen, Denmark

kreisler wrote:
The cell says 840mAh, you measure ~800mAh. How do we get the 840? :)

Good question, I can see in the Sanyo data sheet that they uses a 16mA termination, this will give a few mAh more.

They do also discharge down to 2.5 volt, but there is only a very small difference between 3 volt and 2.5 volt at low currents.

I do not know if these batteries maybe have some age on them and this has reduced capacity (Even a few month will reduce the capacity).

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

fishinfool
fishinfool's picture
Offline
Last seen: 1 year 6 months ago
Joined: 03/09/2010 - 00:30
Posts: 4342
Location: Hilo, Hawaii

Don wrote:

"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion

HKJ
HKJ's picture
Offline
Last seen: 55 min 50 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5654
Location: Copenhagen, Denmark

kreisler wrote:
As published earlier, i could reproduce the high value of 830mAh on one of my TF 14500 flames.

I do not like batteries, where there is a large difference in capacity, that shows that the manufacturer does not have control with the production.

And with LiIon batteries you do not want batteries from that kind of production line.

 

kreisler wrote:
Am wondering how much the EnerPower are, shipped.

On Amazon they are €13.90 each, probably without shipping.

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

how2
Offline
Last seen: 3 years 1 month ago
Joined: 06/01/2010 - 10:26
Posts: 2416
Location: london

Where can I get the Sanyo cells from?

MRsDNF
MRsDNF's picture
Online
Last seen: 11 min 53 sec ago
Joined: 12/22/2011 - 21:18
Posts: 11830
Location: A light beam away from the missus in the land of Aus.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

how2
Offline
Last seen: 3 years 1 month ago
Joined: 06/01/2010 - 10:26
Posts: 2416
Location: london

MRsDNF wrote:

how2 wrote:

Where can I get the Sanyo cells from?

http://www.intl-outdoor.com/2-pcs-sanyo-ur14500p-840mah-protected-battery-p-467.html

 

I want the plain cells

sb56637
sb56637's picture
Offline
Last seen: 6 hours 45 min ago
Joined: 01/08/2010 - 09:29
Posts: 5970
Location: The Light

Thanks very much! Frontpage’d and Sticky’d.

Budget Light Forum ...where Frugal meets with Flashlight!