Battery Tests, Homemade 3000mAh XL Battery & Q&A (POST #1) - New Layout - Page 28 - maemo.org

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	dr_frost_dk	2011-03-02 , 13:07
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#271

Originally Posted by Storm_11

ah ok that makes more sense then. Are you able to operate the phone whilst it is charging?

edit: lipo charger? The same as a li-ion charger thats commonly available for the n900?

Yes i can operate it when charging, and the wire is less in the way then the USB normally is.

No the chargers i normally use can take all kinds of battery's, depending on what model im using.

Here is a picure of 2x DX things combined to make a simple (not very fast) charger.

Car Charger for Nokia 2.0mm Cell Phones
Single 18650/17670 Lithium Battery Charger (1A Charging Current)

Name: DX modified charger.jpg
Views: 2257
Size: 43.4 KB

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shadowjk	2011-03-02 , 21:23
Posts: 1,258 \| Thanked: 672 times \| Joined on Mar 2009	#272

The included N900 "charger" is a power supply only. It outputs 5V. Any "charger" that connects to the MicroUSB port is a power supply. Also "chargers" that connect to 2mm port on older Nokia phones are power supplies.

It is important to never connect power supplies directly to batteries.

As you can see from dr_frost's picture, he has taken the cable from a car charger, and connected it to the output of a Li-Ion charger. A real charger, since you can see it's a cradle designed to connect directly to 18650 Li-Ion batteries.

Again, never ever connect power supplies directly to batteries. It can result in what the industry calls "venting with flame", or what normal people would call "explosion".

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	dr_frost_dk	2011-03-03 , 18:31
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#273

UPDATE: 1350mAh Rechargeable Lithium Ion Battery BL-5J has been removed from the list, they couldn't get it apparently.

But anyway the 1420mAh is in transit and will hopefully arrive soon. Would be cool to get even more capacity then the japod even if it is only 50mAh, still 100mAh when in dual config.

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	dr_frost_dk	2011-03-03 , 20:36
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#274

After talking to 'Julianrome' about his experience with 2250mAh Capacity BL-5J Battery For Nokia 5800 N900 C3 i have decided to add it to the list, it is bought and waiting for delivery.

Fix you USB before and after it breaks
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Tinukedaya	2011-03-04 , 17:56
Posts: 105 \| Thanked: 73 times \| Joined on Jan 2011	#275

Hmm. The battery meter widget is kinda messy for me.

it shows 2585.7% and 34.058V right now...

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	dr_frost_dk	2011-03-04 , 19:32
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#276

Originally Posted by Tinukedaya

Hmm. The battery meter widget is kinda messy for me.

it shows 2585.7% and 34.058V right now...

the fix is here http://talk.maemo.org/showthread.php?t=70590

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Tinukedaya	2011-03-04 , 21:13
Posts: 105 \| Thanked: 73 times \| Joined on Jan 2011	#277

Thanks, that solve it, now to rework it to fit my theme... Althought it means no temperature reading. No big deal. It wasn't too accurate anyway.

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	dr_frost_dk	2011-03-05 , 15:35
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#278

scud battery has been tested

page #1, post #1 for results

all i can say is that MOD 4 will soon be made

and i was wrong about the about 1400mAh limit of the BL-5J size

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Last edited by dr_frost_dk; 2011-03-05 at 16:05.

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	dr_frost_dk	2011-03-05 , 23:44
	Posts: 1,503 \| Thanked: 2,688 times \| Joined on Oct 2010 @ Denmark	#279

Dual Scud battery tested

- 3044 mAh -

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Last edited by dr_frost_dk; 2011-03-06 at 01:08.

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Storm_11	2011-03-06 , 01:19
Posts: 183 \| Thanked: 98 times \| Joined on Mar 2011 @ Brisbane, Australia	#280

Originally Posted by dr_frost_dk

Yes i can operate it when charging, and the wire is less in the way then the USB normally is.

No the chargers i normally use can take all kinds of battery's, depending on what model im using.

Here is a picure of 2x DX things combined to make a simple (not very fast) charger.

Car Charger for Nokia 2.0mm Cell Phones
Single 18650/17670 Lithium Battery Charger (1A Charging Current)

=

Attachment 18191

I have one of these:

http://www.hollyhockbatteries.com.au/CX4000PRO.html

Rated voltages are: 3.6v and 7.2v for lithium batteries
1200mA max. charge current

I use it to charge the battery only. Although its not 4.2v, would it still be suitable, if I hook the +'s and -'s from the charger to the points you specified?