Anyone knows how to add battery to a YBox2?

retched

Joined Dec 5, 2009
5,207
Wouldn't be tough at all, the problem would be the amount of batteries you would need for adequate usage.

If you wanted more than 5 to 10 minutes out of it, you cant use a standard 9v battery.

6D cells might give you a decent runtime.

Or, some of those newfangled LiIon or LiPo batteries could provide the juice.

What is your target runtime?
 

Thread Starter

BestFriend

Joined Sep 22, 2010
31
Wouldn't be tough at all, the problem would be the amount of batteries you would need for adequate usage.

If you wanted more than 5 to 10 minutes out of it, you cant use a standard 9v battery.

6D cells might give you a decent runtime.

Or, some of those newfangled LiIon or LiPo batteries could provide the juice.

What is your target runtime?
Hopefully 1 day or 24 hours. What LiIon batteries should I get?
 

retched

Joined Dec 5, 2009
5,207
Hold your horses. ;)

First we have to take a look to see if there are any current draw numbers available for the ybox2.

If so, it is some quick math to determine what battery capacity we need.

If not, we have to take a look at the schematic and see what the average part draws are and make an 'educated' guess.
 

Thread Starter

BestFriend

Joined Sep 22, 2010
31
Hold your horses. ;)

First we have to take a look to see if there are any current draw numbers available for the ybox2.

If so, it is some quick math to determine what battery capacity we need.

If not, we have to take a look at the schematic and see what the average part draws are and make an 'educated' guess.
Alright, I don't know about the current draw numbers but they provide the schematics here: http://www.deepdarc.com/ybox2/
 

retched

Joined Dec 5, 2009
5,207
Ok, according to her site, the ybox2 is happy with 5-9v DC and requires around 250mA of current.

Are you sure you want to do this? The ethernet and propeller uC require a good amount of juice... But for the sake of answering your question...

Enegizer D cell rechargeable NiMh pack around 2500mAh of juice.

If you use 6 of these, you get around 1.2v * 6batteries = 7.2v and 2500mAh

The datasheet shows around a 10 hours life (to .9v per cell) with a 250mA draw.

Considering the ethernet will fluctuate usage.. You might get 12 hours from the batteries.

So, if you used 12 D cell batteries, putting 6 in series and connecting that pack to another 6 in series via parallel connection, you should get 24 hours from the device.

Then an hour or so to recharge, and do it again.

Here is the datasheet on the batteries:
http://data.energizer.com/PDFs/NH50-2500.pdf
 

Thread Starter

BestFriend

Joined Sep 22, 2010
31
Ok, according to her site, the ybox2 is happy with 5-9v DC and requires around 250mA of current.

Are you sure you want to do this? The ethernet and propeller uC require a good amount of juice... But for the sake of answering your question...

Enegizer D cell rechargeable NiMh pack around 2500mAh of juice.

If you use 6 of these, you get around 1.2v * 6batteries = 7.2v and 2500mAh

The datasheet shows around a 10 hours life (to .9v per cell) with a 250mA draw.

Considering the ethernet will fluctuate usage.. You might get 12 hours from the batteries.

So, if you used 12 D cell batteries, putting 6 in series and connecting that pack to another 6 in series via parallel connection, you should get 24 hours from the device.

Then an hour or so to recharge, and do it again.

Here is the datasheet on the batteries:
http://data.energizer.com/PDFs/NH50-2500.pdf
Thanks! The battery is rather quite expensive though. I'll need 6 2pc pack and that'll cost around $72. Anyway, before I buy it, is there any more cheaper alternatives?

Ow, I've got some spare Nokia Cellphone rechargeable batteries, will that work? The back of the battery says 700mAh 3.7V 2.6Wh
 
Last edited:

retched

Joined Dec 5, 2009
5,207
No.. You will need around 5000mAh.

This device was not designed to operate off batteries.

What could work is one of those 7.2v (or larger) Remote Control car/plane/boat battery packs. That should have the guts.
 

Audioguru

Joined Dec 20, 2007
11,248
Enegizer D cell rechargeable NiMh pack around 2500mAh of juice.
They are very expensive. They simply have a little AA cell inside. So use their AA cells instead and they cost less.

They recently made their Ni-MH battery cells hold a charge much longer and then the capacity was reduced to 2300mAh now.
 
Top