hello
I’m really happy with my new cheap flashlight( [REVIEW] Cheap 14500 flashlight with COB light side and little modding ) for my workshop (milling/turning/CNC…) so i would like to use 2 COB lights bars i got last year from ebay
they are similar to these:
https://www.banggood.com/LUSTREON-DC12V-10W-WhiteWarm-White-COB-LED-Chip-17015mm-for-DIY-Flood-Light-p-1174214.html?rmmds=search
It’s 10W 12V COB light. I would like 1 or 2 mount on a aluminium case like the ones for power bank:
https://www.fasttech.com/products/0/10004876/1428610-external-enclosure-case-for-mobile-power-bank-diy
https://www.fasttech.com/products/0/10004876/2108103-external-enclosure-case-for-mobile-power-bank-diy
I will see later for the enclosure.
But first i would like to know which module i should use.
If i go with 1S config: I need a step up driver 4.2V —> 10-12V + 1S charger for the 18650
If i go with 2S config: I need a step up 8.4V —> 10-12V + 2S charger for the 2 18650.
there is 1S chargers like this one :
https://www.fasttech.com/products/0/10005926/1453504-tp4056-1a-li-ion-battery-charging-module
But i dunno if 2S exist…
If i cant find 2S charger pcb i’ll go with 18650 parallel ?! to get more mah @4.2V