For a campsite I need a mobile powerstation. It’s needed to be able to charge a household accu of a camper via their 230V hook up.
I know this is not efficient charging method but we need to be able to charge different vehicles (those who are on duty to run the campsite).
The thoughts are:
-capable to deliver 500 watts at 230V for aprox 6 hours, i.e. 3300 Wh (including 10% losses) and 4200 Wh (including degradation of cells) x 1.2 for 80% depth of charge 5100 Wh capacity with LiFePo4 battery I.e battery LifePo4 capacity needed of 425 Ah 12V or 210Ah 24V
Sinds only 500 watt is required a 12V system maken more sense. So 2 LiFePo4 batteries of 200Ah 12V parallel should suffice
Always use a BMS-controlled charger when individually charging liFePo4 batteries.
-also deliver a 12V output
-input 48V 10A max 400 watt mobile solar panel (extendable to two of those).
-remote monitoring (wifi is available)
-input 230V for charging on mains
-accu of aprox 350Ah lifepo4
BMS functions:
-protection against too low discharge via output inverter
-protection against too low discharge via 12V output
Which victron components and setup would be advised for such?
Found a basic approach
All Victron chargers (AC
Chargers including Inverter/Chargers, Solar Chargers and DC-DC Chargers) have these preset charging profiles built-in for LifePo4
In this drawing an BMS which is needed for LiFePo is missing. But is easily inserted
I would like to replace the bluetooth dongle (2) for a cerbo-S-GX to able to monitor it from everywhere. The shunt (4), battery protector (3) and mppt (5) choosing models that are compatible with the cerbo-S-XG and chosen BMS
Ok I think these are components that I want the use in my setup:
- MultiPlus 12/500/20 charging load 20A via 230V connection and delivering 230V at 500 watts, has a Ve.Bus
- Cerbo-S-GX with Ve.Bus
2a. VE.Bus BMS V2 BMS for LiFePO4 of LFP with Victron systems with VE.Bus communication
- Smart BP-65 for protecting the battery with external 12V load can be connected with VE.Bus BMS or Lynx Smart BMS.
- Lynx Shunt VE.Can + Lynx distributor
- MPPT 100/20-48V with Ve.direct for 1 400 watt panel 48V open 10A max and one extra same panel if necersarry in parallel
batteries:
1 Victron LiFePo4 battery 12,8V/330Ah - Smart: charging <=80A
2 Victron LiFePo4 battery 12,8V/200Ah - Smart; charging <=50A
Do I miss here something (especially a component too small dimensioned?
Hmm it seems I do not need a separate Lynx Shunt since the Lynx smart BMS has also a shunt function. At least that is what understand from the video about the Lynx BMS. So my list becomes:
- MultiPlus 12/500 VA €340,-
- Cerbo-S-GX € 210,-
- Lynx smart BMS for connection the Smart BP-65 and using victron accu’s € 880,-
- Smart BP-65 € 40,-
- Lynx distributor € 150,-
- MPPT 100/20-48V with Ve.direct for 1 400 watt panel 48V open 10A max and one extra same panel if necersarry in parallel € 70
- victron megafuse holder € 15
- Victron fuse 50A (500 watt inverter 12V) €
sub Total estimated cost: € 1910
Battery options:
1 Victron LiFePo4 battery 12,8V/330Ah - Smart € 1600
2 Victron LiFePo4 battery 12,8V/200Ah - Smart € 1000 p.p. € 2000 set
This is then the idea :
