Matador
100 kW
- Joined
- Jun 29, 2016
- Messages
- 1,045
t3sla said:Does anyone recommend good dcdc for battery to 8.4V use
I'd like to know too...
I got this light that works on 8.4V (separate pack of 3P2S)....
It's a chinese " 28000LM 11x CREE XM-L T6 LED 8 x 18650 Bicycle Cycling Light Waterproof Lamp lot " I got for 30.69 USD....

See similar offer here : http://www.ebay.ca/itm/28000LM-11-x-CREE-XM-L-T6-LED-6-x-18650-Bicycle-Cycling-Light-Waterproof-Lamp-/162186532667?var=&hash=item25c312173b:m:mzUrCJThFdbi4WEPT3p6JzQ
They even have 36000 lumen on ebay now !
Not sure if mine is really 28 000 Lumens (i doubt it'd be that affordable... maybe more like 10000 or so), but man is this thing bright and powerfull ! 8)
I'd tilt it towards the ground if I ever need to ride in town with it, to not blind other people...
The thing is, have another independant battery pack and that is not very convenient. So I to need a DC-DC converter (52V nominal to 8.4V nominal).... But how many watts ?, I don't know for now...
Any suggestion woul be welcome...
I also got myself a 48V horn, I love how loud it is, good for NYC! : http://www.ebay.ca/itm/252618079619?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

and horn switch : http://www.ebay.ca/itm/272162486147?_trksid=p2057872.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT

and a Cmelian X5 Bicycle rear Light (runs it's own inteagrated 3.7V single 18650... and you get a usb cable to recharge it) from Luna [youtube]9t60-_tkz2s[/youtube]