New Batteries.

[swampy]

Having to finaly, replace my batteries, (been nursing them thru winter with a weekly charge), question is, do I go for Yota batteries, ( about £175 inc. vat) 3 year guarantee, or the Alpha ones, (£130 dilivered, inc.vat) 4 year guarantee? Anyone had the Alpha ones in for some time now? Any issues? Anyone gone for the slightly bigger batteries as someone on here did, and said no issues to date?
I would appreciate any feed back chaps.
Cheers.

[Shadyadie]

I went for the bosch from euro parts about £65 cheaper to buy on web and then collect than buy instore
3 year guarantee