Polar M400 Watch Battery Replacement

At first I used my SD card in store to try much more expensive Canon VIXIA HF G10 (around $1400) and I really liked its quality but didn't like the price. So, after some research I found that M400 as well as M40/M41 all share the same sensor etc. I selected M400 because it has no internal memory. It is much easier to insert my own SD card (even class 4 works fine) and then use it in my PC rather than use cable or copy from internal memory to SD card which in turn insert into PC. I was not able to compare VIXIA HF G10 and M400 in the same environment and same settings but generally my impression is that difference is not worth 1000 dollars unless you are professional. Yes, G10 video is sharper, but colors are the same, stabilization is the same and M400 can produce practically pro looking videos. Very good result considering its price. Also, I compared it with several other camcorders in price category below $1000. Some camcorders (like Samsung) produce amazingly sharp pictures, colors are rich, everything is perfect... except image stabilization! M400 stabilization is the best among all camcorders I tried. So, I proclaim M400 the winner $-)Low light perfomance is excellent, buy it for indoor use. Touch screen is not very sensitive, screen itself is rather too small - but the end result is very, very good for such price.Included battery is too small but it is possble to buy up to 6 hours from internet for around $20. However, 6 hour battery I bought through @ is not communicating with M400 i.e. every time I switch camcorder ON I have to confirm that I want to use this battery and time left is unavailable. Still happy because I paid just $20 including shipping. However, you may want to pay more for better quality of life. By the way, 6 hour battery visibly sticks out but improves grip a lot because thumb gets support. I hope my review was helpful :-)

I had another brand of star tracker that my toddler got her hands on so this was its replacement. The polar alignment camera with this setup is amazing. All my subs are spot on from one to another which I had difficulty attaining with the alignment scope my other tracker had for polar alignment. I'm using a DSLR and a 135mm lens. Pros: Small size for easy transport. Polar camera makes polar alignment very accurate and easy. Tracks like you would expect it to. Built in chargeable battery. Cons: No way to control camera shutter without an additional hand controller which is sold separately. You'll need an intervalometer if your camera can't do multiple long exposures by itself.

It's the best replacement for my battery.

The replacement battery is working as it should as it always does.

Replacement Battery works well.

Used this charger on a polar bear safari. Super fast charging of both batteries. Charger checks tests the batteries for power and will apply more charge to that battery than the second while still charging both. good for maintaining battery life and charge speed.

Small and handy. Apart from dual cards seems superior to the newer M400!

Purchased this filter for my canon m400 camcorder. Easy fit no issues.

Everything you would expect from Polar Pro and B & H!

Great replacement battery