Battery Repair for Iso-Tip Soldering Irons
Good news! (Especially for those of you with older Iso-Tip soldering irons.) We’ve learned that Batteries Plus performs battery repair for Iso-Tip soldering irons. So, if you happen to own a model we no longer manufacture, Batteries Plus may be able to help extend the tool’s life by rebuilding the battery. One of our fellow Wisconsinites passed on that little tid-bit of information after he had his 7500 series rebuilt in November. (Thank you, Steve!) And with more than 380 locations in 43 states, you sure to find a Batteries Plus near you. For location information, visit their website.
We do carry a replacement battery for models #7700, #7740 and #7750. This battery is for the gray, orange or black models only. Click here to check it out!
Iso-Tip also offers replacement batteries for our current and some older production models for our customer’s to purchase. Click here to visit our online store.
Do you have an older Iso-Tip soldering iron? After all these years, how do you keep it maintained and in working order? Inquiring minds want to know. Contact Us Here!
Hello Iso Tip,
I have really enjoyed going over your site, especially the F.Q.A.s. I have one of your 7500s from the 80’s. It has served me well, especially down at the boat (my well has no power). I was surprised to read people have trouble with replacement batteries.
I buy your 7833 battery, which I guess is for the 60 series iron. Instead of mounting the negative tab to the screw, you solder the black wire down there to the tab. Make sure you file the tab to remove the plating you use; I have trouble making solder stick to the tab without filing. The positive tab mounts to the upper screw location, as the original.
Works perfect. I am into the 21 century, still using your product.
I have an ISO Tip Model S.I. Would you have information on the battery specs? Voltage, amp hour rating, dimensions, etc? When I check with Battery Plus, what should I tell them about the battery? Do I just send the battery to them and tell them which model I have and they will do the rest? Thanks for your help.
If you’re referring to the orange colored “Model S.I” that dates back to the 1970’s, the specs are identical to the current Model 7700. The battery is the same 2.4V NiCad battery (two 1.2V batteries connected in series) as the 7700, so the #7733 battery will work fine.
I own an orange “S.I.” that I bought new in 1975, but hadn’t used for the last 40 years. After replacing the battery and light bulb (screw mounted 2.25V incandescent bulb), it works like new. I also rewired the charger to operate from a 5.0V USB power source instead of the original transformer.
I also have an S1, but it is black rather than orange. Do the battery specs you gave apply to it as well?
I also have one of your old 7500 series. Picked it up in a junk box, but held onto it and replaced the rechargeable battery – totally worth it! I’ve gone through one tip over the years, but I’m sure it will last long enough for me to need a new one.
Aloha! I have an ISO TIP 60 Model # 7800 from 15 years ago. The battery is listed obsolete in the front section and I’m wondering if I can just get some Sub-C cells from my r/c store to repair it. The battery part ##1371-001 and my soldering iron is yellow. It would be a shame to just chuck it.
Aloha Nicholaos! If you haven’t found a replacement battery for your #7800 we do still offer a replacement, but we recommend you send this model into us for a rebuild. The battery will cost you around $20 +shipping and the rebuild will cost you $30 including shipping. With the rebuild we will also look at your charging base and replace the transformer, if needed, along with anything else in the iron that may be worn. If you would like to go ahead with a rebuild, give us a call at 715-831-6353. We will supply you with a Return Merchandise Authorization number (RMA #). It would be a shame to throw away a great condition soldering iron!
Hello Iso Tip
I own one 7800 color red
I need maintenance to it , change battery and lamp
Can i send it to you?
You don’t need to remove the plating from the tab if you use some flux and silver solder.
Hello ALL … Just a quick note to tell you we do appreciate your notes here I get a ton of emails from all of you. I invite you to put those notes n interesting tidbits on here for everyone. Thanks we do enjoy our customers you are all a cut above the rest in my book.
you can make your own pack with 2 sub c cells.
its easier for most if you buy tabbed cells.
i used sanyo 2400 high rate cells.avoid MOST nimh and china stuff.nimh unless made for power tools have higher internal resistance.these irons are rather demanding on batteries.the sanyos i mention are around 5 milliohms.
the iron heats up fast.worn or poor quality cells cause slow heating and low temp.china stuff is all over the place on quality.i would rather pay for good cells upfront rather than roll the dice.to install the 2 cell led penlight bulb flip the pack so + is at bottom.
then flip the charging pin board so you dont reverse charge!did it to all mine and better light and a small increase in runtime.
I have a model 7600 that needed new batteries and found a suitable nicad replacement at Digi-Key part number SY156-L021-ND for $16.58 Canadian. This iron was my favorite goto iron for years until the batteries died, I am so glad I found a replacement battery to resurrect this fine tool. Do you folks ship to Canada?
Keep up the good work.
A very satisfied customer.
We do ship to Canada, but shipping cost is pretty spendy. What we recommend is to look at Amazon, as most of our products are available for purchase there. Or if you wish to purchase directly from us, we recommend getting your money’s worth for the shipping by purchasing a few tips and other misc. items you may need further down the road. I’m happy to hear you found a suitable battery! Thank you for your business and Happy Soldering!
Hi I have a 7600 also question would it be my battery I plug it in and it doesn’t get hot at all the lil light bulb fell off but I dont need the light…any info please thank u
It sounds like you need a new battery. The 7600 used the same battery that our 7700 uses, so you can use the 7733 battery as a replacement. Once you’ve got the battery replaced, your iron should start working again.
Model 7800, 7840 battery replacement P/N 7833 battery. As many may have noticed we pulled the 7833 battery for the 7800 series Irons from the web site. The reason was we wanted to talk to you on the phone before you replaced it.
The Iron uses a bi-metal snap disc thermostat to sense the battery temperature during the charging cycle. It is that odd mini hockey puck looking thing with the red plunger on the tip end of the battery. When fully charged and the battery at maximum temperature the plunger is fully extended. There needs to be a small air gap (.010 roughly) between the end of the plunger and the white arm. The white arm is the slide that activates the quick charge mode on the side of the iron. If this is not correctly adjusted (air gap) the plunger may not fully extend and it will stay in quick charge mode. If the air gap is too big the quick charge mode may not become activated and you just paid a bunch more money for a standard 7700 iron.
Most of our customers are really smart humans…after all they bought from us and they know how to fix stuff. You have several options when replacing this battery one is to just send it in to us and let us go through the process and test and repair anything else the iron or charger may need. The other is to do it yourself which we all like to try at least twice. Just be aware of this issue and that is why we pulled it from the web site. We still make it and we still will sell it. We just like to talk to you sometimes and let you know the gotcha’s in putting this one in. Thanks All, If you have any questions just call and ask. Oh I think there are some pictures of the air gap on here if not I will be sure to post them right away.
Just got off the phone with Batteries Plus in Union, NJ. They’ve got sub-c batteries in three size capacities, at a very good price, but none of the batteries have solder tabs. This is useless to us with older Iso-tip products, like my model S.I. The rest of your web site have dead links on every URL having to do with replacement batteries for “obsolete” products. How is that supposed to help us?
As an update for people wanting to replace batteries for old soldering iron, I recent purchase a replacement battery for a 7952 Power Pro iron, (battery model WAHL P/N 93153), at Batteries Plus.
It cost less than $11 and included mounting tabs.
Do you have any additional info on that battery. On the phone, BP was unable to track it down. They said it might be a custom rebuild.