Torqeedo 1003 Charging Options?

[Boondocker]

I looked through some of the older threads on the forum in regards to how members are charging there torqeedo batteries while under way, and I have some questions I wasn't able to resolve; so, hoping for some insight from fellow members.

Is there any advantage to making a direct charging cable from one of the 12v outlets over simply using a small 12V inverter plugged into same outlet and using factory charger. I realize there may be a small efficiency loss using the inverter, but they seem to me to be relatively negligible in the newer inverters. From what I've read it doesn't seem that the battery charges any more quickly with a direct DC connection.

Are anyone's real word experiences different from what I've surmised?

 

[knotflying]

You just need to make sure that your battery plug inverter has enough watts to handle the draw from the charger. Other than that I can't see what the difference will be electrically.

 

[baz]

On the odd occasion while under way I've simply placed my battery on a charge using its supplied charger connected to one of the 120v sockets while my 1800watt Xantrex inverter is turned on. I haven't seen any issues with this.

 

[HRowland]

If you are underway the effiency loss of converting 12V->120VAC then 120VAC->12V is not an issue. If you want to charge or contiue to charge while on house battery power (engine shut down and no shore power) then the 12V charge cord will consume the least amount of power.

If you only charge while underway or when connected to shore power then there is no significant advantage with the 12V cord.

Howard

 

[walldog]

If you are underway the effiency loss of converting 12V->120VAC then 120VAC->12V is not an issue. If you want to charge or contiue to charge while on house battery power (engine shut down and no shore power) then the 12V charge cord will consume the least amount of power.

If you only charge while underway or when connected to shore power then there is no significant advantage with the 12V cord.

Howard

Evidently the Torqeedo charger is ok with the inverter. The R27 charger does not like the inverter. If you leave it on when switching over to the inverter from shore power, you will be replacing it. I wonder about long term use of the Torqeedo charger on the inverter.