jonscase
Full Member
- Messages
- 8
jonscase;n3973 said:Has anyone had experience of using a lithium leisure battery in their motorhome/campervan? I'm exploring the idea as I've found lead-acid ones don't last long if they are deep cycled and I understand lithium ones allow this without such problems. .
jonscase;n4095 said:Quite a bit to think about here - thanks.
My problem is space - without some serious modification I only have room for 1 battery - max 330 mm long. The fridge is the only major drain, but the lead- acid batteries I've used previously (110 Ah I think) haven't been up to the job for long. - the last only 2 years, presumably due to deep cycling.
Admin;n4062 said:This is am interesting subject and is one that I have researched a lot over the past few years.
The conclusion was that there are better methods of achieving the same battery bank characteristics without using lithium batteries.
I ended up buying 3 NorthStar NSB-210FT Blue Batteries. They are heavy but have a 2000+ cycle life at 50% discharge. They have super fast recharge times and can have an unlimited charge current.
3 of these batteries would cost you about £1700 and would supply 600Ah on the 10 hour rate or 900Ah on the 100 hour rate. So to break it down to 50% DoD over 100 hours gives you 108Ah per day to use without going below 50% DoD. As these batteries are thin plate AGM you can take them to 80% but it will shorten the lifespan. 3 batteries weigh 207kgs and would be 378mm wide x 550mm length x 328mm Height. 2000+ cycles.
Now lithium...
2 Victron Lithium 300Ah batteries would cost you about £6000 and would supply 600Ah at 25c / 480Ah at 0c. So to break it down to 80% DoD over 100 hours gives you 115Ah per day to use without going below 80% DoD. 2 batteries weigh 102kgs and would be 425mm wide x 530mm length x 347mm Height. These batteries also require a special battery management system. 2500 cycles.
Trojan batteries...
4 Trojan t-105 batteries would cost you about £680 and would supply 414Ah on the 10 hour rate or 500Ah on the 100 hour rate. So to break it down to 80% DoD over 100 hours gives you 96Ah per day to use without going below 80% DoD. 4 batteries weigh 104kgs and would be 262 mm wide x 724mm length x 283mm Height. These batteries must be ventilated. 1000 cycles.
AGM batteries are heavier (double the weight)
AGM batteries are safer.
Lithium batteries take up more space.
Lithium batteries are expensive.
Lithium batteries need to be kept warm for them to achieve their full capacity.
Lithium batteries need need a battery management system.
Trojan wet batteries are cheaper.
Trojan wet batteries have a shorter cycle life. (but this is balanced by the price)
Trojan wet batteries must be ventilated.
Trojan wet batteries require regular maintenance.
There are other things to consider like charge efficiency, but that is a much larger subject
If you want a good battery bank 4 trojan t-105 batteries are most likely your best option.
jonscase;n4272 said:teejay - in response to your q: have one 100w solar panel, and fridge is electric only. The guy who did our conversion said that the fitted battery would be sufficient - but I'm realising that he's probably wrong about that...
Exwindsurfer;n4293 said:I have 400watts of solar and 3 x 125amp batteries and run a 110ltr compressor fridge all works fine for us .
Admin;n4062 said:This is am interesting subject and is one that I have researched a lot over the past few years.
The conclusion was that there are better methods of achieving the same battery bank characteristics without using lithium batteries.
I ended up buying 3 NorthStar NSB-210FT Blue Batteries. They are heavy but have a 2000+ cycle life at 50% discharge. They have super fast recharge times and can have an unlimited charge current.
3 of these batteries would cost you about £1700 and would supply 600Ah on the 10 hour rate or 900Ah on the 100 hour rate. So to break it down to 50% DoD over 100 hours gives you 108Ah per day to use without going below 50% DoD. As these batteries are thin plate AGM you can take them to 80% but it will shorten the lifespan. 3 batteries weigh 207kgs and would be 378mm wide x 550mm length x 328mm Height. 2000+ cycles.
Now lithium...
2 Victron Lithium 300Ah batteries would cost you about £6000 and would supply 600Ah at 25c / 480Ah at 0c. So to break it down to 80% DoD over 100 hours gives you 115Ah per day to use without going below 80% DoD. 2 batteries weigh 102kgs and would be 425mm wide x 530mm length x 347mm Height. These batteries also require a special battery management system. 2500 cycles.
Trojan batteries...
4 Trojan t-105 batteries would cost you about £680 and would supply 414Ah on the 10 hour rate or 500Ah on the 100 hour rate. So to break it down to 80% DoD over 100 hours gives you 96Ah per day to use without going below 80% DoD. 4 batteries weigh 104kgs and would be 262 mm wide x 724mm length x 283mm Height. These batteries must be ventilated. 1000 cycles.
AGM batteries are heavier (double the weight)
AGM batteries are safer.
Lithium batteries take up more space.
Lithium batteries are expensive.
Lithium batteries need to be kept warm for them to achieve their full capacity.
Lithium batteries need need a battery management system.
Trojan wet batteries are cheaper.
Trojan wet batteries have a shorter cycle life. (but this is balanced by the price)
Trojan wet batteries must be ventilated.
Trojan wet batteries require regular maintenance.
There are other things to consider like charge efficiency, but that is a much larger subject
If you want a good battery bank 4 trojan t-105 batteries are most likely your best option.
Admin;n4062 said:This is am interesting subject and is one that I have researched a lot over the past few years.
The conclusion was that there are better methods of achieving the same battery bank characteristics without using lithium batteries.
I ended up buying 3 NorthStar NSB-210FT Blue Batteries. They are heavy but have a 2000+ cycle life at 50% discharge. They have super fast recharge times and can have an unlimited charge current.
3 of these batteries would cost you about £1700 and would supply 600Ah on the 10 hour rate or 900Ah on the 100 hour rate. So to break it down to 50% DoD over 100 hours gives you 108Ah per day to use without going below 50% DoD. As these batteries are thin plate AGM you can take them to 80% but it will shorten the lifespan. 3 batteries weigh 207kgs and would be 378mm wide x 550mm length x 328mm Height. 2000+ cycles.
Now lithium...
2 Victron Lithium 300Ah batteries would cost you about £6000 and would supply 600Ah at 25c / 480Ah at 0c. So to break it down to 80% DoD over 100 hours gives you 115Ah per day to use without going below 80% DoD. 2 batteries weigh 102kgs and would be 425mm wide x 530mm length x 347mm Height. These batteries also require a special battery management system. 2500 cycles.
Trojan batteries...
4 Trojan t-105 batteries would cost you about £680 and would supply 414Ah on the 10 hour rate or 500Ah on the 100 hour rate. So to break it down to 80% DoD over 100 hours gives you 96Ah per day to use without going below 80% DoD. 4 batteries weigh 104kgs and would be 262 mm wide x 724mm length x 283mm Height. These batteries must be ventilated. 1000 cycles.
AGM batteries are heavier (double the weight)
AGM batteries are safer.
Lithium batteries take up more space.
Lithium batteries are expensive.
Lithium batteries need to be kept warm for them to achieve their full capacity.
Lithium batteries need need a battery management system.
Trojan wet batteries are cheaper.
Trojan wet batteries have a shorter cycle life. (but this is balanced by the price)
Trojan wet batteries must be ventilated.
Trojan wet batteries require regular maintenance.
There are other things to consider like charge efficiency, but that is a much larger subject
If you want a good battery bank 4 trojan t-105 batteries are most likely your best option.
Admin;n4062 said:This is am interesting subject and is one that I have researched a lot over the past few years.
The conclusion was that there are better methods of achieving the same battery bank characteristics without using lithium batteries.
I ended up buying 3 NorthStar NSB-210FT Blue Batteries. They are heavy but have a 2000+ cycle life at 50% discharge. They have super fast recharge times and can have an unlimited charge current.
3 of these batteries would cost you about £1700 and would supply 600Ah on the 10 hour rate or 900Ah on the 100 hour rate. So to break it down to 50% DoD over 100 hours gives you 108Ah per day to use without going below 50% DoD. As these batteries are thin plate AGM you can take them to 80% but it will shorten the lifespan. 3 batteries weigh 207kgs and would be 378mm wide x 550mm length x 328mm Height. 2000+ cycles.
Now lithium...
2 Victron Lithium 300Ah batteries would cost you about £6000 and would supply 600Ah at 25c / 480Ah at 0c. So to break it down to 80% DoD over 100 hours gives you 115Ah per day to use without going below 80% DoD. 2 batteries weigh 102kgs and would be 425mm wide x 530mm length x 347mm Height. These batteries also require a special battery management system. 2500 cycles.
Trojan batteries...
4 Trojan t-105 batteries would cost you about £680 and would supply 414Ah on the 10 hour rate or 500Ah on the 100 hour rate. So to break it down to 80% DoD over 100 hours gives you 96Ah per day to use without going below 80% DoD. 4 batteries weigh 104kgs and would be 262 mm wide x 724mm length x 283mm Height. These batteries must be ventilated. 1000 cycles.
AGM batteries are heavier (double the weight)
AGM batteries are safer.
Lithium batteries take up more space.
Lithium batteries are expensive.
Lithium batteries need to be kept warm for them to achieve their full capacity.
Lithium batteries need need a battery management system.
Trojan wet batteries are cheaper.
Trojan wet batteries have a shorter cycle life. (but this is balanced by the price)
Trojan wet batteries must be ventilated.
Trojan wet batteries require regular maintenance.
There are other things to consider like charge efficiency, but that is a much larger subject
If you want a good battery bank 4 trojan t-105 batteries are most likely your best option.
Jezport;n13077 said:I was told AGM batteries are lighter than FLA