Sneaky AGM battery sellers

[dogshome]

You are of course quite correct  8-)  I can't find a spec for this one - I could work out the internal resistance, but to be honest the 860 conversion is giving it a 1 rep workout. A bit 'eavy 

[dogshome]

I gutted an Ebay USB charger / voltmeter and fixed it in. Whether it will catch the low voltage at starting I doubt, but it was something I was messing about with to plug my 'phone in this evening.

Yes I have 4 lock keys.....

[dogshome]

220CCA 22AH battery makes a much better job on a stone cold engine with 20W50.

The 860 is the cause. The CCA un-rated battery could spin the 650 like a washing machine when hot, this more manly one can't do the same on the 9.5:1 860. But it does kick the thing over rather than giving it a gentle nudge!

[Graeme]

I've been installing an "off grid" system at home for a few years now so I've needed to learn a rudimentary amount about battery technology.

You have the "starter type" that are used for vehicles that need to put out a quick burst of power as in starting a vehicle. These have thinner plates and are unsuited to the long slow discharge that may be required for power storage in, say, Solar Systems or camping fridges.

The "Deep Cycle" are used for long slow discharges etc  and have thicker plates and aren't designed for the "kick in the guts" applications.

They are both available in "flooded" & "AGM."

You will get away with cross usage but it will shorten the life of the battery. The Deep Cycle" are more expensive.

A bit from Wikipedia:-

https://en.wikipedia.org/wiki/Deep-cycle_battery#:~:text=The%20structural%20difference%20between%20deep,paste%20material%20and%20thicker%20separators.&text=The%20thicker%20battery%20plates%20resist%20corrosion%20through%20extended%20charge%20and%20discharge%20cycles.