Pierre
Somewhere down South
- Joined
- Dec 21, 2019
- Messages
- 1,122
Shown here is a 48v 100aH battery built into an ammo box ( ZA version ) The build consists of 16 x A grade LiFePO4 battery cells controlled by a 200A JBD BMS.
Only problem at the moment is that I do not have a 48v mains charger , so I charged the battery in 4 x 12v groups with a Victron Blue Smart charger. I am waiting for the delivery of 2 x 48v MPPTs SCC from China, to be connected to a 1680 watt solar array ( 4 x 420w Canadian Solar ) and then to evaluate the complete system. I would like to use Victron MPPTs but I want to first test the Chinese units.
At the moment I feed the energy from the PV directly into the household geyser ( hot water cylinder ) but without MPPT as yet. Lots of potential energy wasted when geyser is on temperature. So the idea is to add the MPPSs and 48v battery to store the potential energy. As 48v is a bit low for the geyser I will add a boost converter ( yes , conversion efficiency and all that blah blah , but hey , it is free energy and I can live with 83% conversion eff ) to boost to 120v at about 10 amps.
Later on I will add an inverter/charger to the mix and power appliances in the home.
Will post updates as I go along.
Only problem at the moment is that I do not have a 48v mains charger , so I charged the battery in 4 x 12v groups with a Victron Blue Smart charger. I am waiting for the delivery of 2 x 48v MPPTs SCC from China, to be connected to a 1680 watt solar array ( 4 x 420w Canadian Solar ) and then to evaluate the complete system. I would like to use Victron MPPTs but I want to first test the Chinese units.
At the moment I feed the energy from the PV directly into the household geyser ( hot water cylinder ) but without MPPT as yet. Lots of potential energy wasted when geyser is on temperature. So the idea is to add the MPPSs and 48v battery to store the potential energy. As 48v is a bit low for the geyser I will add a boost converter ( yes , conversion efficiency and all that blah blah , but hey , it is free energy and I can live with 83% conversion eff ) to boost to 120v at about 10 amps.
Later on I will add an inverter/charger to the mix and power appliances in the home.
Will post updates as I go along.