woodpigeon100 Posted June 18, 2013 Report Share Posted June 18, 2013 Hi All Just an update to a previous post - I have been using two 10ah lithiums from China to power my magnet since August and they are still going strong - good for at least 12 hours per charge. I notice they have just dropped the price to £28 a pair inc postage. I forgot to charge the lithiums last week and had to take a 14ah lead acid and it nearly killed me. Regards to all Quote Link to comment Share on other sites More sharing options...
Cosd Posted June 18, 2013 Report Share Posted June 18, 2013 Can you post a link please. Thanks Cos Quote Link to comment Share on other sites More sharing options...
woodpigeon100 Posted June 18, 2013 Author Report Share Posted June 18, 2013 Not very good on computers but I've copied the item from flea bay New Design DC 12V Portable 9800mAh Li-ion Super Rechargeable Battery Pack Hope this helps Quote Link to comment Share on other sites More sharing options...
Cosd Posted June 18, 2013 Report Share Posted June 18, 2013 (edited) Simply copy the address at the top of the page, starts with HTTP or WWW. then paste it on here. Looks like gobble-de-gook when you paste it, but once you hit the post button it converts to a direct link. Like this: http://www.ebay.co.uk/itm/New-Design-DC-12V-Portable-9800mAh-Li-ion-Super-Rechargeable-Battery-Pack-/310672914757?pt=LH_DefaultDomain_3&hash=item48558c7945 Edited June 18, 2013 by Cosd Quote Link to comment Share on other sites More sharing options...
stu nesling Posted June 18, 2013 Report Share Posted June 18, 2013 got one of those to try a few weeks ago, thought the box was empty when it arrived....lol Quote Link to comment Share on other sites More sharing options...
bunny_blaster Posted June 18, 2013 Report Share Posted June 18, 2013 Do you connect the 2 batteries together or use them separately? Quote Link to comment Share on other sites More sharing options...
lksopener Posted June 19, 2013 Report Share Posted June 19, 2013 got one of those to try a few weeks ago, thought the box was empty when it arrived....lol Does it work well Stu? If these work better than lead acids I'm having some at £14.20 posted from the bay! Did you just change over the terminal wiring? Quote Link to comment Share on other sites More sharing options...
woodpigeon100 Posted June 19, 2013 Author Report Share Posted June 19, 2013 HI I tape the two batteries together trapping the charging leads so they dont flap about then tape two female adaptors together and plug in the power out leads from the batteries then wire the adaptors together in parrallel and use croc clips to feed the speed control / magnet. I've tried to attach a photo but the file is 'too big' - will get my computer whizz son to help later, I know thers a way of downsizing the files without losing too much quality. I reality it's easy to do just hard to explain without pictures . Someone said about buying one for £14 - once the magnet is rotating it is possible to disconnect one battery and run it on one but you have to turn up the speed control to maintain the correct revs. It seemed to me to be 'struggling' (and would only last half as long) so opted to use two. I know lithiums are supposed to stand deep discharge better than lead acid but seems sense to stress them less. Photos will follow I promise. Quote Link to comment Share on other sites More sharing options...
lksopener Posted June 19, 2013 Report Share Posted June 19, 2013 Brilliant thanks fella. Look forward to the photos. Quote Link to comment Share on other sites More sharing options...
woodpigeon100 Posted June 19, 2013 Author Report Share Posted June 19, 2013 Hi Again!!! Photo attached The two leads near the switches are for charging (one charger comes free with each battery) The two green and black adaptors shown on their own are taped together and plugged into the power out leads from the batterry as shown above. Look carefully at the ends of the attached adaptors and you will see the red and green/yellow insulation on the jumpers that connect the batteries in parrallel. The crocs on the magnet clip onto the exposed bit of the jumpers. If you only expose a little copper on each jumper a short cannot occur I hope I've saved someone some heavy lugging of kit Regards Quote Link to comment Share on other sites More sharing options...
Twistedsanity Posted June 19, 2013 Report Share Posted June 19, 2013 I am amazed they are sending them , royal snail have huge issues recently with lithium batteries and their transportation, apparently they explode sometimes so I would say get em while you can guys before they stop em Quote Link to comment Share on other sites More sharing options...
stu nesling Posted June 19, 2013 Report Share Posted June 19, 2013 Does it work well Stu? If these work better than lead acids I'm having some at £14.20 posted from the bay! Did you just change over the terminal wiring? using on flappers at the moment and no problems at all. Quote Link to comment Share on other sites More sharing options...
THE MEK Posted June 19, 2013 Report Share Posted June 19, 2013 how do you charge them? Quote Link to comment Share on other sites More sharing options...
clakk Posted June 19, 2013 Report Share Posted June 19, 2013 got two both came with charger ,cheeper than chips them chinamen for sure.for my lamp Quote Link to comment Share on other sites More sharing options...
THE MEK Posted June 19, 2013 Report Share Posted June 19, 2013 any import duty to pay once they're here? Quote Link to comment Share on other sites More sharing options...
woodpigeon100 Posted June 19, 2013 Author Report Share Posted June 19, 2013 No import duty What power lamps are you guys using with them? I'm using LED's at the mo but would prefer to go back to the halogen if possible. Quote Link to comment Share on other sites More sharing options...
stu nesling Posted July 6, 2013 Report Share Posted July 6, 2013 (edited) 20ah li-ion batt pack 2x 9800mah li-ion packs fm china 1 x http://www.ebay.co.uk/itm/150848282681?var=450088878546&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 1 x cable fm an old car charger with spades on to match my rotor terminals. job done....now for a test on the rotor this pm Edited July 6, 2013 by stu nesling Quote Link to comment Share on other sites More sharing options...
Bleeh Posted July 6, 2013 Report Share Posted July 6, 2013 (edited) DO NOT CHARGE THESE BATTERIES UNATTENDED. CHEAP CHINESE LITHIUM ION BATTERIES HAVE BEEN KNOWN TO EXPLODED INTO FLAMES DURING CHARGING.Other than that, have fun! Edited July 6, 2013 by Bleeh Quote Link to comment Share on other sites More sharing options...
kdubya Posted July 6, 2013 Report Share Posted July 6, 2013 DO NOT CHARGE THESE BATTERIES UNATTENDED. CHEAP CHINESE LITHIUM ION BATTERIES HAVE BEEN KNOWN TO EXPLODED INTO FLAMES DURING CHARGING. Other than that, have fun! I use them all the time for my RC planes I charge them in a lipo sack, means no probs. KW Quote Link to comment Share on other sites More sharing options...
Churchill Posted July 6, 2013 Report Share Posted July 6, 2013 Lithium Ion and Lithium Polymer batteries have been used in the RC world for many years now, Yes don't leave them unattended while charging, and use a charger meant for these type of batteries, most of the problem occur when they are over charged. The word "Exploded" is a bit dramatic, more like burst into flames. Quote Link to comment Share on other sites More sharing options...
clakk Posted July 7, 2013 Report Share Posted July 7, 2013 it,s ok i charge em on the missus,s side of the bed Quote Link to comment Share on other sites More sharing options...
stu nesling Posted July 7, 2013 Report Share Posted July 7, 2013 i had an issue yesterday when i tried to power the rotor up. it would not go! it just twitched! not sure what was wrong....maybe they have a circuit built in that limits the amperage! to protect the battery? batts are fine but not sure they can supply the juice needed for a homemade wiper motor rotor!! maybe fine on a shop bought low amperage jobby. any ideas let me know pse stu Quote Link to comment Share on other sites More sharing options...
wabbit warren Posted July 7, 2013 Report Share Posted July 7, 2013 please tell me more about these batteries im feed up lugging lead acid ones about and also my dad still shoots (77 years young) ID BUY HIM SOME TO KEEP THE WIEGHT DOWN AS WELL so they come from ebay. can you point me in the right direction many thanks ian Quote Link to comment Share on other sites More sharing options...
wabbit warren Posted July 7, 2013 Report Share Posted July 7, 2013 just been on the ebay site and went through the link it showed this New Design DC 12V Portable 9800mAh Li-ion Super Rechargeable Battery Packsurly thats only 9800milli amp hour? am i being thick or what Quote Link to comment Share on other sites More sharing options...
stu nesling Posted July 7, 2013 Report Share Posted July 7, 2013 always thought milli was thousand. meaning 9800 divide by 1000= 9.8ah could be wrong Quote Link to comment Share on other sites More sharing options...
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