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FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
Thread started 13 Sep 2017 (Wednesday) 02:29
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New life for NP-E3 battery

2 posts
Likes: 1
Joined Aug 2014
Location: Warsaw, Poland
Sep 13, 2017 02:29 |  #1

Maybe someone will use this modification …rt/sets/7215765​7698848213 (external link)

John ­ from ­ PA
Cream of the Crop
8,075 posts
Likes: 506
Joined May 2003
Location: Southeast Pennsylvania
Sep 13, 2017 06:11 |  #2

The link seems to only present pictures and does so without any warnings about the danger of soldering at the ends of the NiMH batteries.

Even though NiMH batteries are relatively stable (as compared to others) excessive heat on the ends should be avoided. Wear safety glasses or good eye protection prior to doing this. Anyone attempting this should do some practice soldering and make some adjustments as needed in an effort to reduce contact time of the soldering iron tip on the battery end. Use a good flux to help. Try to get the contact time down to just a few seconds; 10 seconds is too long.

You of course do this at your own risk.

I Chimp, therefore I am
5,024 posts
Gallery: 95 photos
Likes: 2144
Joined Jul 2005
Location: Sydney, Australia
Sep 13, 2017 06:26 |  #3

I had two batteries professionally rebuilt ( they use a spot welder and tabs) with Eneloops for about one third the cost of a new battery. Cost was only about 10% higher than the retail price of 20 Eneloops.

Dave​/photos/12185187@N00/ (external link)
1DX2, 1D4, 1DS2. Canon, Sigma lenses
Image editing OK

3,889 posts
Gallery: 1 photo
Likes: 571
Joined Apr 2010
Location: Wales
Sep 14, 2017 19:21 as a reply to  @ John from PA's post |  #4

Interesting article.

Currently one of my LP-E4N batteries is starting to look a little dodgy (lots of re-calibrating) so I suspect a cell is dying. These packs use the standard 18650 Li Ion cells so I am looking to replace the Canon originals with some better quality cells when it finally dies. If only one or two cells are dead then I will have some more batteries for my torches (flashlights).

This sort of soldering is easy - even I can do it!

Life is for living, cameras are to capture it (one day I will learn how!).

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New life for NP-E3 battery
FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
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