Ridge Runner said:
Hard Luck said:
Ridge Runner said:
I would try and get the 3400s or bigger and all that means is you have a longer power supply (Run Time) and get 4 fitted in the pack because that will give you 14.8 volts and your machine can safely handle 16 volts, Ok.
John
John
Am I not supposed to get 8 batteries?
Sorry Mate I thought the 3.7s were the 18650s, Yes you need 8x 3.7s,,,,2 sets of 4 wired in parallel to give you the run time because they are only 600 mah from looking at that picture, but that will only add up to 1200 mah so I am not sure about the run time at 1200 mah I would only expect 2 hours 10 minutes, Of coarse I could be wrong, but there is something about this set up that I don't trust and the lack of correct info.
john
The 600 mAh batteries in the picture I posted are not 3.7v lithium ion batteries, they are LiFe batteries, (different sort of lithium) & only 3.2v.
The highest mAh rated 3.2v LiFe batteries I have found on Ebay are 1500mAh so 8 of the in parallel would make 3000mAh from what you have said. (3x 600mAh in parallel = 1200mAh).
8x 3.2v ran in parallel which is what I would say Frank (the digger) has done with his battery tray would be 12.8v, maybe a little more when fully charged with no load, which is most likely the 14.5v which was mentioned to me.
As I don't know much about the wiring etc, I can only go by the pic & what I was shown & told which is that the centre battery contact at the top of the pic was cut in half & then wires attached. Looks like a wire goes from the far left contact to the centre right & the other wire goes from the far right contact to the centre left. Batteries are installed the same way as is pictured on the inside of the tray so I guess the wiring makes it so the batteries are ran in parallel to get the correct voltage.
Maybe someone with more knowledge could dummy up a setup like this a work out what voltage would be achieved using both the LiFe 3.2v & Lithium ion 3.7v batteries, I would but I don't really know what I'm doing.
All batteries I am talking about are the AA size, (model 14500), not the bigger 18650 model.