# Battery Charging Time Computation

Good Day,

I am having trouble to compute the charging time of my battery with this kind of set-up:

(2) 300W 36V PV Panel (1) 500W 24V Wind Turbine (1) Hybrid Charge Controller (6) 12V 200Ah Batteries @ 24V Configuration

The batteries are connected to series-parallel connection that will give 24V 600Ah output.

How long is the charging time of my battery?

• Your death battery kill good batterry. :) Separate every battery charge channel for fast charge. You kill good battery if other be corrupted on same group. Commented Apr 11, 2016 at 8:48

SIMPLIFIED CALCULATION:

Your battery has (seen from the outside) a capacity of 600Ah.

In an ideal world: If you would start with a empty battery and could charge it with 600A it would be full in an hour.

In a real world: Each battery loses some energy while charging. This can be between 10% to 40%. Our empty battery would be full after 1.4 hours.

You can charge in the best case with 800W (300W PV and 500W Wind).

800W / 24V = 33A

600Ah*1.4 / 33A = 25H

This is a simplified version of the reality. Your wind and solar will probably never reach the 800W.

• My Battery is Deep-Cycle Battery so how can I calculate the charge current in amps. Commented Apr 12, 2016 at 1:34
• Deep-Cycle only means, that it does not get damaged if you discharge until a certain low level. It does not tell you anything about the current Commented Apr 12, 2016 at 7:17