Battery Cycles (1 Viewer)

[two]

No, I’m not talking e-bikes. I’m trying to find out what the definition is when describing the number of cycles a battery is able to sustain. It seems that it’s as short as a piece of string – or is it?

A battery with a life of 300 cycles could only last a year being used and recharged on a daily basis. So it seems that Ah ought to be a part of this equation. Without a more specific unit of measure I feel that the values bandied about ought to be taken with a similar amount of Sodium Chloride.

 

[funflair]

I believe if you only use 5% of the battery capacity and then recharge it you can do this 20 times to = 1 cycle, what % discharge counts to a cycle I am not sure though I would guess between 50% and 80% depending on the battery spec.

Martin

 

[PhilandMena]

You also need to add DOD to complete the equation. DOD is depth of discharge and I would expect to see 50% in the specification. So, if you take the Banner Lead Acid battery for instance it states 200 cycles at 50% DOD. Which means you can discharge the battery 50% and fully recharge 200 times before the battery failes. Clearly, if you only discharge your battery 20% before re charging your going to get a shed load more cycles.
To ensure you select the right type of leisure battery you may want to have a this. I use a class B battery and I'm mostly off hook up.

http://www.thencc.org.uk/our_schemes/ncc_verified_leisure_battery_scheme.aspx

^{_{Subscribers  do not see these advertisements}}

 

[two]

I'd expect there to be some kind of exponential relationship between the number of cycles you can perform and the DoD it's taken to before recharging. You could 'tickle' a battery many more times than you could 'thump' it.

 

[funflair]

I'd expect there to be some kind of exponential relationship between the number of cycles you can perform and the DoD it's taken to before recharging. You could 'tickle' a battery many more times than you could 'thump' it.

Indeed there would be a lot of variables, length of time discharged before full recharge being another killer.

Martin