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Solar trickle chargers

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McCabe-Thiele (Ted):

--- Quote from: Athame57 on August 16, 2022, 10:24:59 AM ---
--- Quote from: McCabe-Thiele (Ted) on August 13, 2022, 02:53:22 PM ---
... my slave battery.

--- End quote ---
What is a slave battery here? Sorry if it sounds like a doughbag question but I've never heard the term before and google is producing odd results!

--- End quote ---

Its a good spare battery that I can use for jump starting, powering my Strobe light - testing bulbs etc.

P.S. In the 1960's before the advent of Power Packs most car dealers had a small wheeled trolley containing a couple of 6v large capacity batteries connected in series for jump starting vehicles - they were reffered to a the Slave Batteries.

Lobo:
There’s a lot of science to battery longevity, and as I read it, the best way to slowly knacker one is to allow it to discharge fully.

Cycle life depends on the Depth of Discharge (DoD) and assumes that the battery is fully charged and discharged each cycle. If the battery is only partially discharged each cycle, then your battery will actually last for longer than the stated design life.

There are plenty of graphs wrt DoD about, but a reasonable aid to longevity is to avoid taking it < 50% capacity.

Last year I bought a 12v ride-on jeep for our 2yo grandson, and modded in voltage cut-out circuitry because I know that his dad would simply allow it to be run flat, and knacker the relatively expensive batteries. At the time I did a fair amount of research… mostly forgotten now 🙁.

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