Mar-13-2018 05:16 PM
Mar-17-2018 08:09 AM
Mar-16-2018 10:19 PM
aftermath wrote:
And, now that I think about it. Why do they call them 12 volt batteries if at 12 volts they are already at 50% discharge? They should call them 12.8 volt batteries. Of course everyone knows that a 12 volt battery is not actually 12 volts. It starts at 12.8 then goes down to 12 and then hits "empty" at 10.8 Everyone knows this, don't they?
Mar-16-2018 09:48 PM
aftermath wrote:
And, now that I think about it. Why do they call them 12 volt batteries if at 12 volts they are already at 50% discharge? They should call them 12.8 volt batteries. Of course everyone knows that a 12 volt battery is not actually 12 volts. It starts at 12.8 then goes down to 12 and then hits "empty" at 10.8 Everyone knows this, don't they?
Mar-16-2018 09:41 PM
Mar-16-2018 09:37 PM
SoundGuy wrote:aftermath wrote:
When you hear "don't discharge your batteries below 50%" I don't think many know what that means. Look at the chart and a 50% discharge will take you down to 12 volts which makes no sense what so ever.
Why does it "make no sense"? :h Full depletion of any 12 volt deep cycle battery occurs @ 10.5 volts, 50% is just a general guide for the masses, nothing wrong with drawing the battery / batteries down further as long as you don't do it too often and recharge ASAP. This general recommendation also applies more particularly to flooded batteries but with more & more starting to use other types such as AGM, GEL, lithium, etc, this general rule of thumb is also becoming less so. For the average user though it's still a reasonable guideline to follow if you expect to get any life out of your RV battery.
Mar-16-2018 09:28 PM
deltabravo wrote:Good work! You truck camper guys really get to know fitting stuff into small spaces. Props!
My inverter
Mar-16-2018 07:52 PM
Mar-16-2018 05:44 AM
Mar-15-2018 06:45 PM
Mar-15-2018 07:47 AM
mobeewan wrote:
Checked the model number on your battery and it is a hybrid (dual purpose) marine starting battery. More for use on a boat for DC power along with starting the engine. It has deep cycle plates along with starting plates. Do not discharge it below 50 percent before recharging or it will shorten the battery life. A true deep cycle would serve better and allow discharging down to 20 percent before recharging and it will serve longer than a marine starting battery.
There was some a lot of good information on the following link about DC power for RV'ing.
The 12 volt side of life.
Mar-15-2018 07:46 AM
aftermath wrote:
When you hear "don't discharge your batteries below 50%" I don't think many know what that means. Look at the chart and a 50% discharge will take you down to 12 volts which makes no sense what so ever.
Mar-15-2018 07:36 AM
GordonThree wrote:
Double check your manual and look at your reverse polarity fuses.
BLACK is typically positive in the RV world, not negative. I believe you have both your positive and negative cables both connected to the negative terminal on the battery.
White is negative, black positive, red is non standard positive for an RV.
Mar-15-2018 07:32 AM
Mar-14-2018 09:03 PM