bryanl wrote: »
...Quantity of lead with a proportionate amount of electrolyte determines capacity. Surface area of lead exposed to electrolyte determines peak current (this gets into surface charge)....
Lead Calcium Batteries
Lead acid batteries with electrodes modified by the addition of Calcium providing the following advantages:More resistant to corrosion, overcharging, gassing, water usage, and self-discharge, all of which shorten battery life.
Larger electrolyte reserve area above the plates.
Higher Cold Cranking Amp ratings.
Little or No maintenance.
Lead Antimony Batteries
Lead acid batteries with electrodes modified by the addition of Antimony providing the following advantages:Improved mechanical strength of electrodes - important for EV and deep discharge applications
Reduced internal heat and water loss.
Longer service life than Calcium batteries.
Easier to recharge when completely discharged.
Lead Antimony batteries have a higher self discharge rate of 2% to 10% per week compared with the 1% to 5% per month for Lead Calcium batteries.
SLI Batteries (Starting Lighting and Ignition)
This is the typical automotive battery application. Automotive batteries are designed to be fully charged when starting the car; after starting the vehicle, the lost charge, typically 2% to 5% of the charge, is replaced by the alternator and the battery remains fully charged. These batteries are not designed to be discharged below 50% Depth of Discharge (DOD) and discharging below these levels can damage the plates and shorten battery life.Deep Cycle Batteries
Marine applications, golf buggies, fork lift trucks and electric vehicles use deep cycle batteries which are designed to be completely discharged before recharging. Because charging causes excessive heat which can warp the plates, thicker and stronger or solid plate grids are used for deep cycling applications. Normal automotive batteries are not designed for repeated deep cycling and use thinner plates with a greater surface area to achieve high current carrying capacity.
Automotive batteries will generally fail after 30-150 deep cycles if deep cycled, while they may last for thousands of cycles in normal starting use (2-5% discharge).
If batteries designed for deep cycling are used for automotive applications they must be "oversized" by about 20% to compensate for their lower current carrying capacity.
GreenPowerManiac wrote: »
Why is it that DWH is the one speaking my language ?
40 amp fuse rated for 8 awg wire. I'm assuming that I want the fuse to pop before the wire heats up. Knowing that, I could use say, 30a inline fuses. I'll give it a shot.