DIY EPIRB batteries

[oldbilbo]

I have a pair of 'legacy' EPIRBs - a McMurdo E3 and a GME MT400. Both check out at 'self test' and both really need fresh Li-Ion batteries. That excellent company SarTech have quoted fairly reasonable prices for 'rebuilds', but I'm musing over some DIY.

Who's done such a job? How and how much....?

Perhaps more intriguingly, who's good at odds? Not needing 'em at all vs neither one of 'em working when needed? Get one sorted professionally, and DIY t'other...?

Who's good at 'decision trees'....?

 

[GrahamM376]

I did our Pains Wessex some years ago, very simple job with battery and gaskets from Sartech. Sartech cost more but have facility to test transmit, rather than relying on self-test which doesn't always show faults.

 

[Tranona]

I have a pair of 'legacy' EPIRBs - a McMurdo E3 and a GME MT400. Both check out at 'self test' and both really need fresh Li-Ion batteries. That excellent company SarTech have quoted fairly reasonable prices for 'rebuilds', but I'm musing over some DIY.

Who's done such a job? How and how much....?

Perhaps more intriguingly, who's good at odds? Not needing 'em at all vs neither one of 'em working when needed? Get one sorted professionally, and DIY t'other...?

Who's good at 'decision trees'....?

Decision trees are the easy bit. Establishing the probabilities of events occurring (or not) in the future is the tricky bit. If you could do that with certainty then you would not need a decision tree.