pacmanBNENL
New Member
- Joined
- Sep 5, 2021
- Messages
- 3
So I live in Amsterdam and am looking to convert my Boat 30Hp petrol engine to an Electric Motor the brand Torqeedo looks like the best option on the EU market.
Just a little background
My boat is 6.1m / 20 feet long and only travels on the inland waters of NL. The Dutch have decided that come 2025 all boats need to be Electric so I have some time up my sleeve but dont want to leave it until the last minute.
Current conversion costs for a boat my size and weight is anywhere between €6k - €10k thats just for the motor. The recommended batteries by the vendor are there own which are 48v 5000w and they recommend 2 of them at cost of €5k each. But they also allow alternate battery options (See supplied Pictures below for the suggested battery layout)
I currently have 3 12v AGM batteries installed to drive Start / Accessories / Bow Thruster and one lifepo4 MasterVolt 30ah which connects to the Mastervolt MPPT and Mastervolt Inverter which has 1 21v 110w Solar Panel. The inverter drives a Mastervolt Charger which charges the AGM batteries. Granted its a bit of a mess but was the result of doing the design on the fly hence why I am posting here I dont want to make the same mistakes on this design. But the may reason for this setup is I dont have shore power and the summer this season has been well non existent and I wanted to keep the batteries charged when not in regular use. So the above does the job. The inverter charges during the day when the sun is out and cuts off when the voltage is 12v or less and sleeps during the night and starts again when the sun is out. The solar panel is a flexible as I have no place to permanently mount or store them when not in use. But the aim here is also to increase the panel foot print to say no less than 4 no more than 6 not sure I have the enough real estate to secure them if I have more than that.
Sorry I know that is a little long winded but needed to paint the picture.
So now the ask do I just go with the 42v 5000w vendor battery which is criminally expensive but german built and if I include there faster charger and Solar MPPT it will set me back €13k without solar panels or do I DYI my own 2 48v 5000w systems that can be charged by Solar when not in use and or shore power. (The dutch are starting to role out charging spots along the canals so if I get desperate I can plug into 240v power)
Also most of the inland water speeds around me are 7km/h so I am not going to be running this engine at full throttle
So the battery layout suggested by the vendor is:
The specs of the Vendor battery
So if I could build two 48v with the above specs surely I could build 2 for the price of there one. As long as its capacity has 5000wh and allows at least a 200A draw where the BMS wont trigger a battery shutdown because that would suck if I am applying power to get out of trouble or danger.
So this is where I am open to suggestions and put it to the forums wisdom to get suggestions on
CELLS (which Type CALB , FREY, EVE )
BMS ( Was thinking Overkill Solar)
MPPT / Inverter / Charger (can be 3 standalone items or a hybrid combination ) open to ideas here
Solar Panels Sizes to satisfy either direct charging the DYI Batteries and or Charging and offline battery that will run an inverter / charger at night
The vendor also suggest to keep 12v accessories separate so will also build 2 DYI 12V with one that will be big enough to take the AMP draw of my bow thruster which is 12v and vendor battery suggestions is to use a battery with at least 1000A CCA (Cold Cranking Amps.) So they too will need to be charged of the same charging system as above.
So open to ideas
Just a little background
My boat is 6.1m / 20 feet long and only travels on the inland waters of NL. The Dutch have decided that come 2025 all boats need to be Electric so I have some time up my sleeve but dont want to leave it until the last minute.
Current conversion costs for a boat my size and weight is anywhere between €6k - €10k thats just for the motor. The recommended batteries by the vendor are there own which are 48v 5000w and they recommend 2 of them at cost of €5k each. But they also allow alternate battery options (See supplied Pictures below for the suggested battery layout)
I currently have 3 12v AGM batteries installed to drive Start / Accessories / Bow Thruster and one lifepo4 MasterVolt 30ah which connects to the Mastervolt MPPT and Mastervolt Inverter which has 1 21v 110w Solar Panel. The inverter drives a Mastervolt Charger which charges the AGM batteries. Granted its a bit of a mess but was the result of doing the design on the fly hence why I am posting here I dont want to make the same mistakes on this design. But the may reason for this setup is I dont have shore power and the summer this season has been well non existent and I wanted to keep the batteries charged when not in regular use. So the above does the job. The inverter charges during the day when the sun is out and cuts off when the voltage is 12v or less and sleeps during the night and starts again when the sun is out. The solar panel is a flexible as I have no place to permanently mount or store them when not in use. But the aim here is also to increase the panel foot print to say no less than 4 no more than 6 not sure I have the enough real estate to secure them if I have more than that.
Sorry I know that is a little long winded but needed to paint the picture.
So now the ask do I just go with the 42v 5000w vendor battery which is criminally expensive but german built and if I include there faster charger and Solar MPPT it will set me back €13k without solar panels or do I DYI my own 2 48v 5000w systems that can be charged by Solar when not in use and or shore power. (The dutch are starting to role out charging spots along the canals so if I get desperate I can plug into 240v power)
Also most of the inland water speeds around me are 7km/h so I am not going to be running this engine at full throttle
So the battery layout suggested by the vendor is:
The specs of the Vendor battery
So if I could build two 48v with the above specs surely I could build 2 for the price of there one. As long as its capacity has 5000wh and allows at least a 200A draw where the BMS wont trigger a battery shutdown because that would suck if I am applying power to get out of trouble or danger.
So this is where I am open to suggestions and put it to the forums wisdom to get suggestions on
CELLS (which Type CALB , FREY, EVE )
BMS ( Was thinking Overkill Solar)
MPPT / Inverter / Charger (can be 3 standalone items or a hybrid combination ) open to ideas here
Solar Panels Sizes to satisfy either direct charging the DYI Batteries and or Charging and offline battery that will run an inverter / charger at night
The vendor also suggest to keep 12v accessories separate so will also build 2 DYI 12V with one that will be big enough to take the AMP draw of my bow thruster which is 12v and vendor battery suggestions is to use a battery with at least 1000A CCA (Cold Cranking Amps.) So they too will need to be charged of the same charging system as above.
So open to ideas