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| McCain Proposes a $300 Million Prize for a Next-Generation Car Battery | 30 Jun 2008 18:02 GMT | 1 |
What do you guys think? http://www.thecuttingedgenews.com/index.php?article=610 It looks like it brings attention to the right area, with possible tremendous
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| Charging Question | 19 Jun 2008 23:59 GMT | 1 |
I have a Panasonic BQ-390A Quick Charger. The spec sheet says that the Output is DC 1.5V, 550mA x 4/430mA x 2. The largest capacity batteries shown in another chart on the spec sheet shows 2300mAh taking 135 minutes for 1-2 batteries and 270 minutes for 3-4 batteries. I have ...
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| Opportunistic Charging of NiMH | 17 Jun 2008 16:17 GMT | 4 |
I want to charge a number of AA and AAA NiMH batteries with capacities ranging from 900mAh to 2700mAh using a solar panel that, in theory produces 12V, 6.5W. My multimeter tells me that it regularly produces 12V but current fluctuates quite a lot (the panel is attached to
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| Can H2 and O2 be separated by buoyancy? | 16 Jun 2008 09:39 GMT | 1 |
I have a small electrolyser to make H2 and O2. I don't have a proton exchange membrane (for budget/complexity reasons) so they get mixed as they are created. I'd like to separate them. Since H2 is more buoyant than O2, I was considering having 2 tanks
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| Constant power loads on CR123A cells | 14 Jun 2008 15:06 GMT | 2 |
I have an application for a triplet of CR123A cells in series that will draw about 5W constant power. There are multiple internal devices, but they are all fed by switchers.
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| Parallel lithium ion cells. | 06 Jun 2008 20:49 GMT | 3 |
I'm designing a battery pack using 18650 lithium ion cells. The configuration is 6 in parallel, 4 in series. I'm using TI ICs for cell balancing, protection and gas gauge and a secondary protection IC for cell over voltage.
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