Forum Discussion
RoyB
Jul 17, 2013Explorer II
I have found you CANNOT use a "DIODE BASED" BATTERY ISOLATOR. Those high current diodes have a 0.7VDC voltage drop across them.
Battery science and my own experience tells me you need around 14.4VDC at around 20AMPS available to charge a deep cycle battery in as little as three hours time. Having this large 0.7VDC voltage drop when using diode based battery isolators drops the charging voltage down to around 13.6VDC and this according to battery science takes around 12 hours to re-charge a deep cycle battery back up to its 90% charge state.
If this is what you are looking to do then the diode based type battery isolator will work for you. To get the deep cycle batteries re-charged any quicker then you must use a SMART MODE RELAY CIRCUIT to switch the batteries into the charging circuit.
No expert here - just what I read and have been playing with over the past many years with my JEEPs camping off the power grids and more recently with the RV Trailer off the power grid camping...
Inverters are very power hungry and you have to respect that... My PSW 1500WATT Inverter requires a 175AMP in-line fuse with the DC Voltage source. Thats alot of power to work with from a battery system.
Roy Ken
Battery science and my own experience tells me you need around 14.4VDC at around 20AMPS available to charge a deep cycle battery in as little as three hours time. Having this large 0.7VDC voltage drop when using diode based battery isolators drops the charging voltage down to around 13.6VDC and this according to battery science takes around 12 hours to re-charge a deep cycle battery back up to its 90% charge state.
If this is what you are looking to do then the diode based type battery isolator will work for you. To get the deep cycle batteries re-charged any quicker then you must use a SMART MODE RELAY CIRCUIT to switch the batteries into the charging circuit.
No expert here - just what I read and have been playing with over the past many years with my JEEPs camping off the power grids and more recently with the RV Trailer off the power grid camping...
Inverters are very power hungry and you have to respect that... My PSW 1500WATT Inverter requires a 175AMP in-line fuse with the DC Voltage source. Thats alot of power to work with from a battery system.
Roy Ken
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