Nisei

Well, for me that is an inconvenience. I don't want to have to think about it all the time. There comes a time when you're halfway through the day and you're out of power. With a phone you can plug it into the charger and start using it right away. You can't do that with an APV.

0.10 Ohms @ 60W = 24.49A current draw 1.00 Ohm @ 60W = 7.75A current draw That's more than 3 times the current draw. How can the board change Ohm's Law?

That's different. Low Ohm setups draw more current than high Ohm setups at the same wattage. When being able to set max current draw you can set an amperage which you feel is safe for the batteries you're using and don't have to pay attention to your ohm/wattage combination. Can be quite useful when using batteries with a lower than the recommended current draw rating.

I don't have a DNA200 yet but is it possible for the user to set max amp draw? I've been proposing this to a few manufacturers in the past but they weren't interested. I think ir would be a nice feature to protect you from accidentally going over your battery's rated max current draw.

Haha, OK that was quick! Thanks man, didn't expect it to be implemented so soon (if at all)!

Agreed. Also, existing 2x parallel 18650 designs could simply be modified to use 2x 18650 in series without having to start from scratch again.

Hey thanks again John. That makes it very clear! My concern with the batteries isn't just size related though, it's shape and connectivity that worries me most. With most classic designs you unscrew a cap, drop in a battery and pop the cap back on. Now APV and mod makers are limited by the fact that you have to be able to open it up in such a way that you can connect plugs to connectors. This has a huge impact on how a device is going to look unless you want people to depend on onboard charging.

Ha ha, yes I saw your post on the other forum That's why I posted this here to ask if perhaps it can be done. I'd really like to know what would be the reason it couldn't be done. Charging could also be done accordng to supply voltage. My cheap Turnigy LiPo chargers also auto detects how many cells are in a battery and chooses the right voltage to charge with. I'd love to buy this board but I'm not prepared to convert to Snickers sized batteries just for the features. I don't want 200W

Thanks for the quick response. I wonder what you mean with "etc." I didn't think about charging (probably because I always charge outboard) but that's the only caveat I can come up with. Otherwise I see no reasons why it couldn't be done.

Wouldn't it be pretty simple to have the DNA detect input voltage and limit max wattage output accordingly to support single cell batteries (or 2 single cells in parallel) as well? Board detects a voltage between 3 and 4.5V and switches to 60W (or 50W) max mode Board detects a voltage between 9 and 16V and switches to 200W max mode This way the board would be much more attractive to people who rather keep using standard Li-ion batteries.