【Upgrade】2Pack 3.0Ah Replace Battery for Bosch 12V Batteries BAT414 Compatible with Bosch 12V max Lithium-Ion Tools and Chargers for Bosch 12 Volt Battery BAT420 GBA12V30 BAT411 BAT411A BAT412 BAT413

Anyone wondering if these work in dremel 8250, the answer is yes. I can’t speak to longevity or the quality of the cells inside. But they are priced well, appear to be made well, and work flawlessly in my dremel 8250. Also the company Calihutt seems to specialize in third party batteries and appears to have good reviews across thier products. I will probably pick up a kobalt 24 v max just to have a third battery because I see they are only $30 and well reviewed. Anyway back to the product in question. Yes well made, priced well, works in dremel. Company seems to have a good warranty which is also a plus. One caveat to potential dremel owners, the keyed tab is on the opposite side of the terminal. It will still insert and work just fine, but it won’t work on the stock dremel 8250 charger. The key gets in the way. I have other chargers and it works fine in there. What I did was just cut off the key with a cutoff wheel. Took two seconds. I didnt need to because as I said I have other chargers that work, but I’d prefer if all my batteries worked across all my chargers. I probably voided any warranty and that’s ok with me. If not spend $14 on a Bosch charger. I bought a really neat one that is super compact, slows you to use usb c, and can be used as a power bank if need be. It doesn’t have any key so all batteries no matter which side the key is on will work. The reason I got it was specifically to be able to use usb c instead of ac power. The added power bank functionality is nice to have but I’ll never use it. So yes these batteries are good so far and work in dremel 8240,50,60. Seems to be good quality, and good company, and a fair price. For reference one dremel battery is $70! No thanks. I did buy one official spare and that’s only because it was on sale for $53 which is still expensive for one 3ah battery. Now I have 4 total and am set. 2 oem, 2 third party and two chargers.

Great product. Perfect fit and function.

Grest product. Exactly what the product says it is

Fit perfect, seems to work as well as original.

Comes with a plastic ear that will not fit in my chargers, does go in the guns and works. Ear is 180 degrees from my bosch batteries. Mine are pretty old. Easy to knock off the plastic ear and it charges. Not sure on the battery quality yet. Just commenting on the ability to charge them.

I was actually deep digging for additional batteries for my Dremel 8240, which takes the 12V 2 amp batteries and quickly discovered that unless I wanted to way overpay for Dremel brand batteries there was really no other generic option. ...or was there? After some deep digging online I discovered that Dremel and Bosch have the same parent company and largely interchangeable parts. So for less than the cost of one Dremel 2 amp battery I got two aftermarket 3 amp batteries that work BETTER than the originals. I've been working on a home remodeling projects and using my Dremel quite a bit to do detail work on hard wood (with the highly recommended https://a.co/d/61rqh54 just make sure you have an easy lock shaft) and the blade would randomly stop from sort of pushing the tool to the limit. Now that I'm using the 3 amp batteries the power/speed is indeed at least 50% greater and it's yet to sort of get stuck mid cut and eat up the batteries. I couldn't be happier with these. Like most, I'm reviewing when these are new but even if (god forbid) these don't last long, I'd still buy another set before overpaying for a 2 amp battery. So if you have a Dremel 8240 these are the batteries you want. I even had some trial and error with others that listed 8240 specifically as compatible but wasn't. Get these, you'll be pleased.

Have purchased 4 of these batteries. One stopped working after 6 months. Would no longer take charge.

NOT compatible / NOT a replacement for BAT 414. See picture - the key/keyway to mate with the charger and/or tool on these batteries is on the opposite pole as the OEM. Cannot be used. Look at your battery before you buy! OEM on left, this one on right.

Características exactas, buen material, embona muy bien, hasta ahora funciona perfectamente.

بعد شراء هذه البطاريات البديلة لأدوات بوش اللاسلكية وتجربتها، يمكنني أن أؤكد أنها كانت اختيارًا موفقًا. الأداء كان قويًا، ومدة عملها أطول من البطاريات الأصلية التي تأتي مع الأدوات، خاصة وأنها ذات أمبير أعلى. جودة التصنيع تبدو ممتازة، والسعر كان مناسبًا جدًا مقارنةً بالأداء الذي تقدمه. هذه البطاريات هي خيار رائع لكل من يبحث عن بديل قوي وفعال بأسعار معقولة، دون التضحية بالجودة. أنا راضٍ تمامًا عن عملية الشراء وأنصح بها بشدة