Are Cellink NEO type batteries a necessity?

SawMaster

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@Indian I must admit to some jealousy- that's a much better system than the 20A one I have planned (y) Good to see that you understand the needs and limitations of Lithium-type batteries, and that your system has the necessary safety mechanisms in place. Many of the cheaper chargers and controllers do not have low-temp charging cut-off even when they are advertised as having that :( but most do have high-temp cutoff. Done properly as yours seems to be, the system will probably out-live at least a few dashcams which makes the costs reasonable overall.

Many thanks for sharing this with us, and may you not ever need your dashcam footage for anything less than pleasurable viewing purposes :cool:

Phil
 

Nigel

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Done properly as yours seems to be, the system will probably out-live at least a few dashcams which makes the costs reasonable overall.
I suspect it will out-live liquid fueled cars, and then become redundant!

It is nice to see it done properly, safety should be a concern for all battery systems since the consequences can be a loss of the car. We haven't been hearing of any safety issues with the older Cellink etc. that don't have low temperature charging cut-off, but maybe it is just a matter of time as they age.
 

Indian

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This is a neat 12A lithium battery that cost about 100 dollars. This should keep the dashcan going for about a week. Small too. 98X96X150 mm.
A friend of mine put 3 of these connected in series to his electric scooter.
Your alternator should charge these in minutes.
The prices are Norwegian so will be cheaper for you. It is Topband that produces these batteries.
Another brand you can look for is the Ritar.
If you live i cold climates you need a Dc charger
One big advantage of the lithium is that the voltage stays constant at 12.8V down to 10%. With lead acid, your battery is flat at 11.7V.
At 50% the voltage will be at 12.2V. Then you have the problems with sulphation of the cells. Do this a frw times and your battery is dead.
The difference between life and death of a battery is only 1V.




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Indian

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This is a home made 80A lithium battery made from cells bought from AliExpress. Total cost was 68 dollars including case and Andersen contact.
Building one at 36 A would cost 40 dollars.



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