hi ive got two lipos 5000mah 25c 7.4v that were in my truck when my esc burnt out and i had a small fire the cells look ok they are not swollen and look fine but the wires are a bit chard could i just change the wires and re shrink rap the cell if so could tell what to do as these cells wer $118 or £60 and i want to see if i could save my lipos