Scarab Posted May 7, 2016 Report Share Posted May 7, 2016 New version of Escribe75 is available. Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted May 19, 2016 Report Share Posted May 19, 2016 my dead VT200 has a new life now. put the 75 board in with some modifications. rewired the 3s hcigar lipo for 3p. drilled a not so perfect hole for the LED. is this an ideal enclosure......no, but i have some 18650 75's on the way so this was just kind of a "why not" project. Link to comment Share on other sites More sharing options...
jrfhoutx Posted May 20, 2016 Report Share Posted May 20, 2016 How difficult was rewiring the 3S? I've been thinking about doing that for one of my batteries, just had no idea how hard it would be... Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted May 20, 2016 Report Share Posted May 20, 2016 jrfhoutx said:How difficult was rewiring the 3S? I've been thinking about doing that for one of my batteries, just had no idea how hard it would be...not hard, as long you're VERY careful when separating the pack into individual cells, being careful not to hard short any of the cells. the positive and negative battery tabs will most likely be aluminum and if you're soldering you need a flux that can be used with soldering to aluminum. the 3s hcigar lipo pack i rewired for parallel came out to 11.14 watt hours when i ran battery analyzer. Link to comment Share on other sites More sharing options...
MegaVape Posted May 20, 2016 Report Share Posted May 20, 2016 Charging rate on this board? Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted May 20, 2016 Report Share Posted May 20, 2016 MegaVape said:Charging rate on this board?states 1 amp. with my usb meter i've only seen .82 amps. Link to comment Share on other sites More sharing options...
Spirometry Posted May 20, 2016 Report Share Posted May 20, 2016 ChunkyButt200 said:states 1 amp. with my usb meter i've only seen .82 amps. Is it possible, that it is 1 Amp on the battery side.4.2v x 1a = 4.2w (battery side)4.2w / 5.0v = 0.84 A (usb side) Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted May 21, 2016 Report Share Posted May 21, 2016 Spirometry said:1 Amp on the battery side.4.2v x 1a = 4.2w (battery side)4.2w / 5.0v = 0.84 A (usb side)never bothered to figure the math. figured it was the cheap usb meter i bought off ebay. thanks spiro! help me out here....... so when i figure for my VS dna 200 that has a 2 amp charge rate..... so 12.6v x 2a = 25.2w, 25.2w /5.0v = 5.04 amps usb? usb meter is only reading between 2.00 - 2.14 amps when the shark is charging. am i doing the math wrong? Link to comment Share on other sites More sharing options...
Spirometry Posted May 21, 2016 Report Share Posted May 21, 2016 Now you having me scratching my head. My Vaporshark is drawing 2 amps on the usb side. Maybe I was wrong on the first statement. I haven't had a chance to build my dna75 yet, to test it. Link to comment Share on other sites More sharing options...
Spector NS5 RD Posted May 21, 2016 Report Share Posted May 21, 2016 Spirometry said:Now you having me scratching my head. My Vaporshark is drawing 2 amps on the usb side. Maybe I was wrong on the first statement. I haven't had a chance to build my dna75 yet, to test it.i'm going to open up my homemade vt75 and test the current going to the battery with my klein mutli meter and get this figured out. will post back.edit......the multi meter inline with the battery-to-board circuit confuses the board/charger. i could not get the usb current above .17 amps. at .17 amps i was at about 0.163 amps on the battery side/MM side (if the numbers are even accurate). oh well, i'm not complaining. this 3000 mah charges decently fast with the on board charger. although, i do have some tiny 1 amp micro usb lithium battery charging board. there's room inside for them. maybe i'll put them inside somewhere.you can stack these charging boards (parallel the outputs) to double the charge rate from 1 to 2 amps. Link to comment Share on other sites More sharing options...
VapingBad Posted May 21, 2016 Report Share Posted May 21, 2016 That all correct the Shark DNA 200 does charge at 2 A from the USB, the 75 doesn't need an amp from the USB to provide an amp to the battery. I can see it is confusing in that the specified charge current applies to the UDB for DNA 200s and to the battery side on DNA 75, I assume it is so as I clock mine at around 0.8 A on a metre which is consistent with 1 A charging on the battery side. Link to comment Share on other sites More sharing options...
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