| Joined: | Sun Apr 1st, 2012 |
| Location: | Carthew, Cornwall, United Kingdom |
| Posts: | 6843 |
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New Nikon battery costs £139, even an other brand item from China costs £40.
You will need new contacts for the batteries. (£2.50)
https://www.ebay.co.uk/itm/10-Pair-Silver-Spring-Battery-Contact-Plate-Replacement-For-AA-AAA-Batteries/323876819503?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
In addition you need three new batteries. (£15)
https://www.ebay.co.uk/itm/Genuine-Panasonic-18650-3400mAh-Rechargeable-Battery-NCR18650B-Li-ion-Vaping/312640104264?hash=item48cacd6748:m:m6ZQpHtU7EpZUwO6Ts9lR2A
The process of re-celling the battery is very similar to the process outlined in the earlier process for re-celling the D1/D2 series batteries but with Lion battery cells.
The current EN-EL4A is a lithium battery so once it is re-celled then it can be charged on the MH-22 battery charger from Nikon.
The process is to cut open the old EN-EL4A battery along the seam of the battery.
Remove the old cells and solder the springs to the negative (-ve) connection points and the raised connection pads to the positive (+ve) points.
You may need to shorten the springs of the -ve terminals. Also the base pads of each terminal may need to be reduced in size so that there can be less chance of short circuits being made.
The new batteries are simple pushed into the case and the case is put together and then hot glued back together again.
There are no pictures as the process is so simple.
The re-celled battery is undistinguishable from a new battery except for the wear and tear scratches on older batteries.
Any help required then please contact me directly.
See the battery wiring diagram.
The springs are shown on the negative end of the battery.
In the following (second) post.
This is what the old battery looks like when it is opened up!
I have not shown the associated charging and control electronics board.
Attachment: Battery diagram_small.jpg (Downloaded 41 times)
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Still learning after all these years!
https://nikondslr.uk/gallery_view.php?user=2&folderid=none