Hakko’s FX-901 is a cordless soldering iron that is powered by (4) common AA-sized batteries and can operate at in excess of 600°F.
Hakko says that you can expect for an output of at least 600°F (or >300°C) for up to 60 minutes. Runtime can be extended to 120 minutes with the use of rechargeable batteries (2150 mAh) – a Hakko fact sheet recommends nickel hydrogen batteries, USA product descriptions recommend NiMH batteries.
The soldering iron works with no flame, doesn’t require butane or any fuel, is built with an on/off switch, and the tip is user-replaceable. For added convenience, the entire battery cartridge is removable for when you need to swap batteries.
I have yet to try any cordless soldering irons, mainly because I don’t like messing around with butane if I don’t have to, and I’ve never heard of a good battery-powered model.
Remember the “Cold Heat” battery-powered soldering irons that were heavily advertised on TV and then near-universally complained about? That really biased me towards battery-powered soldering irons.
The Hakko FX-901 seems to have good reviews, and Hakko’s claims seems to be quite modest. This isn’t a do-all soldering iron, it’s what you could use for casual use, field work, and in places where AC outlets are inaccessible and butane soldering irons aren’t permitted.
I’ll probably give this a try, and am eager to hear if you own or have tried an FX-901 before. It seems like a handy tool, and with a $32-$35 price tag, it’s not too expensive as a quick-and-easy or portable soldering iron.
One thing that Hakko doesn’t talk about is how fast it heats up and cools down, but it looks like the included cap could help with quick heat dissipation. At the very least, the cap should protect the tip against inadvertent damage.