Battery Chargers - Dual Purpose

[HD]

Hey,

After a battery charger for both my bike and to charge my garage battery that powers the lights.

I bought one from Draper whihc seemed a really good charger. It not only charged but tested too to show you what state thge battery was at. The problem as, however, it had minmum and maximum amp ratings. The minimum was above my bike battery yet the maximum was under my garage battery so it wasn't useful for either.

I am looking for a charger that can do both really. I'm asking on here because I would like a recommended one that will do the job and is good quality/value.

My bike battery is 4amp and IIRC my garage one is 50amp. Would like one that has overcharge protection and things like that. Looking at ~£20.

Any help would be great
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Rusty '02 Vito Camper + CBR600F3

[Muscle Bike Rider]

Oxford optimate?
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Previously Known As A5tra_G
Old Bikes :2010 Kawasaki ER6 F & 2000 Honda VTR Firestorm
Current Bike : XJR1300

[HD]

Bit out of the price range really

Looked at the oxford optimiser but it has a maximum of 30amps
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Rusty '02 Vito Camper + CBR600F3