Glow starter - how do you look after yours?

[tellor]

Hi guys,
After just buying my 3rd glow starter i need help in how to look after it.
When I used to race electric cars with nicads and nimhs in them we used to store them discharged

As my glow starter uses a Nimh I presume I do the same but what does everyone else do to prolong the life of their glow starter?

Also can you still buy single cell 1.2v Nimhs to put in the glow starter?

cheers