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My Ikelite Strobe Battery Rebuild

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I figured I would recreate this thread from the other site. Might as well populate this forum with as much info as we can salvage. I am also not seeing a way to imbed the images into the post so all of the images will be at the bottom it seems. If anyone can tell me how to do that I will set it up that way.


I am getting all of my gear in fighting shape as I hope to get back to shooting underwater. I recently picked up a housing for my R5 and I pulled the strobes out to get them going. I have two DS125s and the battery packs are from 2007. Although they seemed to take a charge they didn't seem to be holding well. I also noticed a little deterioration on one of them which turned out to be the cells leaking a little. Luckily none of the electronics were damaged. Ikelite does not rebuild these anymore but is happy to sell you a new one for $250.


I pulled them all apart to find 6 SAFT 3200 sub C 3000 mAh batteries. Searching high and low I struggled to find those exact cells, at least for anything less than $15 a cell. I believe these are now made by ARTS Energy. These are made in France.


nullI ended up choosing cells from Tenergy. These are "made in China" which I was hoping to avoid but I have experience with Tenergy through other hobbies like RC boats and airsoft. I was able to get 15 of the 3000mAh cells from Amazon for $38. (Original write up from 2022 so prices may have changed)


I used regular hot melt glue to hold the packs together for assembly. I believe the packs will be mostly held together by the housing once installed. I also bought a spot welder from Amazon for about $60 to attach the tabs. I bought the one from SeeSii based on reviews. It worked really well and went very quickly. 


I used the nickel tabs that came with the spot welder. They are a little thinner than the original but wider so hopefully it won't affect the current requirements. I tried to research as best I could and I believe the original cells are rated to 40 amp discharge and the Tenergy are either 30 or 38. It has both values listed on the website. I suspect the strobe won't use anywhere near that to charge up. 


Once I had the tabs installed and checked the fit it was time to solder the electronics to the batteries.


I took these pictures with my cell phone and the quality of some are not great so I apologize. 

I then fit it all back into the case and screwed it back together.


I am waiting on O-rings from Ikelite for the switch and the toggle. I charged them up and have them sitting with the focus lights on to drain them down. I tried the strobe function and they seem to charge at least as fast if not a little faster. At 1/2 power they kept up with low speed continuous shutter on the R5. 

I will add the final assembly details and photos probably next weekend once I get those O-Rings. So far I am about $115 in to both strobes including purchasing the spot welder. A savings of almost $400 over buying new packs.








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I will follow this up with my original follow up on assembling the switch and toggle.


I was able to get the required O-Rings from Ikelite for the battery packs. 

0114 is the 2 on the toggle shaft

0128 is the larger one behind the switch

0136.04 is the very small one that goes behind the switch screw.

Using some silicone grease I lubricated the O-Ring that goes behind the switch. They call this an X-Ring as it isn't round but has ridges to it like a gland. 


It is hard to see in the picture but you have to install the small plastic bar that engages the notches and makes for the clicks as you turn the switch. There is a little nub on it that should face in towards the shaft. Getting this to stay in while you install the knob can test your patience. One this was installed I rotated the switch a number of times to be sure I seated the X-Ring into position. 


Next up is the small O-ring that goes behind the screw that holds the knob on. This one was tricky and required a few tries. Once I would tighten the screw and look down in the hole I would see the O-ring had squeezed out around the screw head. It took a couple tries but I was able to get it all seated. 


Next up was installing new O-Rings onto the toggle lever shaft. Not too tricky.


The final install requires you to put the cover plate over the back and then install the toggle. The cover plate needs to go on so that the toggle can still twist counter-clockwise. It will only fit one way. You then place the first spring on in the recess, followed by the first washer and then the second spring and second washer. The locking lugs go on last and you have to wiggle them around until it sits down over the keyed end of the toggle. Then the 1/4 nut goes on the end. You just have to work at this until it gets started and you can thread it on. 

Everything is all together and I just have to test them out in the water. You could do a test in a bucket of water but you would have to remove the plate to see if any water got in. Not sure if I will do this or just jump in the water and see how they do. 

If you have any questions feel free to ask. I'm no expert in this but I thought this might inspire someone who was on the fence. 





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Some of the questions on the original thread revolved around battery choice. The batteries I chose were close to the originals in diameter and slightly shorter. They are a Sub C size battery but if you research them you will find that they may vary a mm or 2 here or there. It doesn't seem like much but you are not working with a lot of space to begin with. As for capacity, my feeling is discharge capability would be my primary interest but that information is not readily available. Your instinct my be to go for a high capacity battery but my research says that many of those high capacity batteries do not live up to the claims under actual use. 


I was able to use these packs in Bimini last month and I was doing 300+ photos on TTL mode on a single charge. So they meet the stated capacity of new Ikelite batteries. For Clarification I was using DS125 strobes.  

7U9A0112 - Copy.jpg

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When you want to embed images, choose the files and with your cursor where you want the image, hover over the thumbnail and you will see the link "insert"appear click that and it will insert where you had you cursor.


I think you then delete the images at the bottom.  You have to do it while it is still editable, the abailty to edit a post has a time limit.

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19 hours ago, Chris Ross said:

When you want to embed images, choose the files and with your cursor where you want the image, hover over the thumbnail and you will see the link "insert"appear click that and it will insert where you had you cursor.


I think you then delete the images at the bottom.  You have to do it while it is still editable, the abailty to edit a post has a time limit.

Thanks for that info. 

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