how long does your battery last?
Well I hope everyone had an enjoyable Labor Day weekend camping! I have a couple questions after camping this weekend in Mammoth with no hookups. Our 18ft TT only has one battery and I had it chargi...
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Here is a handy chart showing state of charge verses battery DC Voltage. This is NOT absolute but gets you in the ball park thinking... The only real way to tell what the battery charge state is to use a HYDROMETER and read each battery cell.
Here is what PROGRESSIVE DYNAMICS says about charging DEEP CYCLE MARINE TYPE batteries... We follow this guideline pretty close in our travels...
"Progressive Dynamics ran this test on the amount of time it took a PD9155 (55-amp) converter/charger set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.
14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.
13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.
13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."
This is battery charging science at play here - not many ways to get around it..
Roy Ken
Here is what PROGRESSIVE DYNAMICS says about charging DEEP CYCLE MARINE TYPE batteries... We follow this guideline pretty close in our travels...
"Progressive Dynamics ran this test on the amount of time it took a PD9155 (55-amp) converter/charger set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.
14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.
13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.
13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."
This is battery charging science at play here - not many ways to get around it..
Roy Ken
