Kinetic/Ballistic Systems

[JERRY2KONE]

Originally Posted by Erevocanuck

Do Li-Fe cells really need a voltage cut off?

According to all of the info provided by manufacturers a low voltage cut off is not required for LiFe cells. Like Thiessen stated when the LiFe cells are done there is a sharp drop in power and you will know it is time to stop and recharge. From what I have seen there is no real danger with the LiFe cells, and the power provided seems to be very similar or close to the same level as the LIpo cells without worry of catostrophic failure or fire due to over heating the cells.

Seems like a good laternative choice in my opinion over the Lipo technology, but how well they actually stand up against LIpo in performance is yet to be discovered or reported. Some feedback from those who have used them would be nice so we can weigh in on comparison.

[JThiessen]

I used 2S2P A123's in my Revo prior to going Lipo. In the same truck, the performance of the A123's was good - not as good as Lipo, but still a signifcant improvment over Nimh. Just off the top of my head, I would get 15-20 minutes of run time, compared to 20-30 on my lipos. And they charge so fast - 20 minutes or so.....I'd be just rotating packs off my charger and running them. Disadvantage is size - I tried setting them up as 3S2P but they were absolutely huge.