A123 cells questions

[joeling]

I'm interested in these. I want something safe & fool proof for my 'fun' runabout the house type rcs like the tamiya TLT-1 or equivalent. My questions :

1) Is there a difference betwwen LiFe & LiFePo4 (A123) cells specifically with regard to the chraging regime. I.e. can use charger for LiFe to charge A123 type of cells ?

2) LVC - How inherently safe is the A123 type of cells? They are similar to Lipo in a sense that they have a minimum cutoff voltage ? What happens if this voltage is breached ?

I know that a lot of questions have been answered when these were intoduced a while back but never bothered to study carefully.

I don't want lipo in my 'fun' rcs as my kids also get to drive them & the esc does not have any LVC built in. Getting an external LVC is kind of a hassle & I want the vehicles to be safer. Nimh will do but I want something that can hold charge a little better & not having to charge it up before fun time can start.

Regards,
Joe Ling