Iso-Tip, there’s a lot in our name. For more than 40 years we’ve been building the 7000 series soldering irons and the PRO’s tell us they stand apart from the rest.

Our Isolated Tip design gives high temps fast at the push of a button, anyplace. You might just find yourself done with the job while other irons are still heating up. By isolating the tip we prevent electrical leakage that may cause component damage while soldering. Most soldering irons offer only a few tip choices, over the years we have developed more than 20 tips to meet your soldering needs. Our High efficiency tips give you a quicker heat-up time and use less battery life. The Long Life tips are Nickel plated and designed for more continual use and will meet all of your tougher tasks. Our long list of standard tips will work well for your general soldering needs. For over 40 years professionals have looked to us for advancements in portable soldering and we have enjoyed meeting that challenge.

If you’ve never tried one of our cordless irons we hope you will. We also supply other “tools worth discovering” for heating, finish work and the tough soldering jobs. If you have a need let us know, we do appreciate input from the people that use our products. Not all soldering irons and especially tips are the same. Let us know what you think, we enjoy what we do and appreciate the people we do it for.

Thanks for visiting us
Your Team at Iso-Tip
Division of Senasys

News, Events and Interesting Stuff

7000 Series Cordless Soldering Iron Differences

We get asked this question many times, so I thought it might be wise to post this. Yes, every now and again Joe Iso-Tip has a good idea.

So here’s the difference between our soldering irons to help determine the one for you…

First of all, the 7000 series irons (7700,7800,7904) can use any of the tips; they are all interchangeable. That said, they all heat up quickly…very quickly. In fact, it’s around 10 seconds. You move the red dial on all of them to unlock and push the button. The light will shine on your solder joint and remain on until you have the heat you want, then release the button. Press again for more heat. All models work the same and very simple to operate.

I have to caution you at this point because everyone who gets our iron thinks I’m kidding. They get an iron, hold the button down for 3 to 4 seconds, and then touch it to their finger. Shortly thereafter they yell, “Boy! That was stupid!” They learn the hard way that the iron heats up fast. I should make a video of this because everyone does it, and yes, it’s funny to watch. I always say “What? Did you think I was kidding?”

Now we all know the tips are interchangeable between irons. The 7700 is the basic unit and the biggest seller for good reason. It’s like the difference between electric and crank up windows in your car. Windows aren’t that hard to crank  and when a motor or switch goes out in electric ones, it becomes costly and a real pain to deal with. The 7700 is the crank up window version of our soldering irons. The people that use them will use words like dependable, bullet-proof, and easy, since it’s simple to change the battery.

The 7800 is the same iron as the 7700 but with a quick-charge mode added. The 7700 and 7800 will both perform roughly 125 solder joints on a circuit board. I know that number is a hard thing to determine, but we had to come up with something. If you put a heat sink on the tip, and hold the button down continuously, it will stay at max heat for about 20 minutes solid. Most people use it for a few joints, pop it back in the charger, and it keeps on tickin’. If your battery goes down and you need it charged quickly, the 7800 has a white slide button on the side. Sliding that down will put the iron in quick-charge mode. From a dead state, it will charge in about 60 minutes. The 7700 will take 4 hours from dead. The way we accomplish that is neat, but again, it’s like electric car windows. The majority of people who want a battery replaced in the 7800 send it in to us for a complete rebuild of the iron and charger. Oh! I forgot to mention that WE REBUILD OLD IRONS.

The 7904 Iron is the same as the 7700 except it is longer in length due to it having a larger battery which will do roughly twice the number of solder joints per charge. The 7904 has no quick charge feature, which means it takes 4 hours from dead to charge, same as the 7700.

Are All Cordless Soldering Irons Garbage?

Hey guys, this is Joe Iso-Tip again. We just recently got in a new guy who apparently knows a thing or two about soldering, but hasn’t tried one of our irons before. So I told him to grab one of our Quick Charge #7700s along with a few other brands of cordless soldering irons, play with them, and see what he thought. Here’s what he came up with:

I’ve never messed with a cordless soldering iron before, but I have heard of other people’s experiences with the junky performance of the cordless soldering iron. They always complained about how quickly they run out of power and how they are very bulky or just plain cheap; but does that hold true to every cordless iron? As Joe suggested, I grabbed a few different brands of cordless soldering irons on the market, including ISO-TIP’s Quick Charge #7700 to see what was good and bad for myself.

cordless soldering iron, battery operated soldering iron, Weller BP860MP, Master Appliance Micropro BT-30, Radioshack cordless soldering iron

ISO-TIP, Weller BP860MP, Master Appliance Micropro BT-30, Radioshack cordless soldering iron


Let’s start with the blue one. This iron was definitely my least favorite soldering iron out of the three. Looks wise, it was okay. In the hand, it felt awkward due to the size and weird shape of the iron. However, it did have some integrated rubber grips on it which made holding it a lot easier. Ok, so what else can it do? Well it has interchangeable tips…but only 3. If that’s all you need, then great. But ISO-TIP has 20 different solder tips to offer for any job or project out there.

On to the maroon iron. It heats up rather quickly. I grabbed a fresh set of batteries, tossed them in, and heated the solder with a cordless soldering iron record of 15 seconds! But our ISO-TIP 7700 melts solder within 10 seconds…so…record broken.

Lastly, $7.99 RadioShack red cordless soldering iron. It is similar to the others, but it heats and disperses solder much better than the previous two. Now what these AA battery operated soldering irons all have in common is that their tips aren’t good for sensitive electronic work. If you start using these on your fragile electronic components, the electricity can surge through the tip and fry all your work. Fortunately, ISO-TIP’s tips are isolated, meaning that our tips will not only keep your electronics safe, but they will heat up faster and more efficiently (due to their ceramic core) than your standard soldering tip.

So are all cordless soldering irons garbage? No. It really depends on the application you are looking to use it with. I would have to say that if you only have 15 bucks to spend on a one time application, and you don’t really care about damaging delicate electronics, then buy a big box of AA batteries and give something like the RadioShack cordless soldering iron a whirl. If you actually use the iron and want it for years to come, and the flexibility of a wide selection of tips is important…. try Iso-Tip. They’re professional grade cordless soldering irons that have been an industry leader for 20 years.

Cordless Soldering Iron Comparison Guide
Time it takes to
Melt solder
Charge time Tips available How long of a
Charge it holds
Customer rating
ISO-TIP #7700 10 seconds 3.5 to 4.0 hours 20 19 minutes 4.8 out of 5 Stars
Radioshack Cordless Soldering Iron 16 seconds N/A 1 28 minutes 3.2 out of 5 Stars
Weller BP860MP 38 seconds N/A 3 46 minutes 2.6 out of 5 Stars
Master Appliance MICROPRO BT-30 15 seconds N/A 8 52 minutes No reviews available


For Our International Customers: Step Up/Step Down Transformer

We received a step up/step down transformer that can be very useful to our international customers! Since other countries have different outlets and run on a different voltage, this transformer allows you to use their plugs. For instance, the customer was able to connect their Iso-Tip charging base to the transformer to generate juice to the cordless soldering iron.

Star Lite Transformer WTG100, step up transformer, step down transformer

This Star Lite Transformer WTG100 is utilized by plugging the two prong plug into the outlet and then plugging the different plug into the transformer.

This Star Lite Transformer WTG100 is utilized by plugging the two prong plug into the outlet and then plugging the different plug into the transformer (see pictures below). It can either step up or step down the voltage with a flick of a switch. It allows these capabilities of transforming higher or lower voltage by heating up coils inside which lets off heat. When you want it to function as a step down transformer, it will take 220V and drop it down to 110-120V. When using it as a step up transformer, it will boost the voltage from 110V to 220-240V. The step up function is most commonly used in the United States when using another country’s output, and the step down function is mostly correlated with using a United States plug in a different country.

Along with the transformer came a different outlet plug adapter that is used in different areas across Europe. The prongs are flat and angled at 45 degrees to fit another specific outlet. This is able to attach to the two prong plug for easy alteration.

Using Iso-Tip to Create Model Railroads

We love hearing how customers are putting our cordless soldering irons to use.  Check out this one…

Rick has created a HO model railroad layout of Jenkins Curve on the New Haven Railroad in Bridgeport, CT with the help of our cordless soldering irons. Using our extended tips, he is able to repair and modify his strung catenary. The cordless soldering iron and tip varieties make the detail work of Rick’s HO layout easier!

Here’s a picture of Rick’s catenary.  The detail is crazy!


Iso-tip, cordless soldering irons, HO layout, catenary

Iso-Tip Customer uses extended tips to assemble HO layout’s catenary.

Grey 7700 Charger Base Problem

2 basesIf you have a grey 7700 charging base that the soldering iron doesn’t fit into properly and the unit will not charge…Read On. We always work to build the best product we can for our customers because we like em.. but sometimes things slip through and that is what happened. A small tab in the base of the charger was left by our molders and it shouldn’t be there. You have several choices, you can send it to us and we will replace it with a new one and put a new tip in the box to cover your shipping, or you can follow the directions below and fix it yourself. Don’t worry about breaking it if you fix it yourself we’ll replace it because we messed up and we should. To repair the base FIRST UNPLUG THE CHARGER yes FIRST UNPLUG THE CHARGER oh did I say UNPLUG IT.  Look at the images they show the tab that doesn’t belong.  With the charger unplugged you can cut or break the small plastic tab off. I t does not all have to be gone to operate properly. You can use a needle nose pliers or a nippers or whatever you have that will work. Try to not bend the 2 silver contacts that are on either side of the unwanted tab. If you break it give us a call we’ll take care of it. We wouldn’t give this information out to most people but the people that own these irons seem to be really smart.  I would also like to thank the customer that brought this to our attention we do appreciate it.