Charging a BL-5J (N900) battery in the N810

There are several reasons why you would like to charge your N900 battery in a N810. Maybe you have a spare battery that you want to charge while using the other battery in your N900, or maybe your N900 refuses to charge the battery by itself. Please note that even though it works for me, the standard disclaimer applies - it's all your fault if this destroys your devices and/or batteries :)

Now, let's have a look at the pinouts and connectors of both batteries:

So, the connectors seem to have the same size, even though the batteries do not. Trying to put the N900 battery into the N810 is not straightforward, as there is a white piece of plastic that prevents the battery from getting close to the connectors. The solution is to simply use the N810 stylus as a lever to push the battery towards the connectors:

After the stylus and battery are fixed, simply connect the N810 to the power adapter, and it should start charging. Thanks to Quim for this helpful hint :)

"N900" wishlist: Hardware scrollwheel

One of the things I've been thinking about recently is how I would like to have a scroll wheel (like all normal computer mice have) on the right side of my N800, just below the "Nokia N800" text. This way, I could easily scroll web pages and long texts without needing to use my finger on the touchpad. Using the finger on the touchpad has several disadvantages:

1. You hide parts of the content you are reading with your finger
2. You might accidentally click a link (in the browser)
3. Scrolling through long texts means you have to sweep with your finger from the bottom of your screen to the top, several times

Apart from scrolling, this could act as a nice volume control in media players. Maybe even make the scroll wheel pressable, so we have another button (mute in media players?).

If you have an N800, please try this the next time you want to scroll a webpage: Move your finger over the top right side of your N800, between the "Nokia N800" text and the speaker holes. I don' t know if the scroll wheel would fit onto a smaller device like the N810 (or the "N900").

I think a touchscreen is nice, but having hardware buttons makes the device just easier to use in my opinion. I would even try to make touchscreen clicks by pressing the display, like it is done with the new Apple MacBook touchpads (see apple.com for videos). But there may be patent problems with that, so maybe this is the reason why we won't see that on the "N900". But think about it! Wouldn't it be nice?

That said, please also improve the D-Pad and hardware keyboard on the new hardware :)