Hi to all !
I have connected 19 "small" homemade batteries into one realy, realy huge battery. After some tests and after fixing some problems with volmeter, i have this situation:
One "small" battery: DCV : 2,53 V DCAmps: : 0,5 mA
Huge battery: DCV : 48V DCAmps : 24 mA
Hardware:
- 48 DCV homemade battery
- 1KW DC/AC converter
Idea: To pull 1KW from the inverter, for 10 hours.
Methods to encrease power: Step - down Charge pump (?). Capacitors
Calculations:
P 1428 W Ibat. = --- = -------- ~ 30 amperes E 48V
------------------------------------------------ P 1000W I = --- = ---------- ~ 4,5 amperes E 220V
------------------------------------------------- Pout 1000W Pinverter = ------ = ---------- ~ 1428 watts Eff 0.7
------------------------------------------------- C = It = 30A *10hr = 300 ampere - hours.
Questions:
1.) How to produce so much power ( 30A)2.) Is there possibility to fill the capacitors and then to pull the power from them ( for 10 hours). ?
Conclusion: I have conected two devices ( volt and amper meter ) on the same battery wires, to measure the states on small battery. When i switch to power measurment (on ampermeter ) my voltmeter shows 350mV and my amp. meter, 0.5mA. After i shut down amp. meter, voltage on the voltmeter shows again 2,5 Volts.
Mark