- Feb 26, 2011
No, it would be a massive waste of money, a 5kW Inverter takes 4 batteries for 48V, a cheap and nasty 105Ah battery cost around R2800, four of them is already R11 200, a basic lithium 2.4kWh battery is around the R12k mark. In all seriousness you don't want to buy a R2800 battery, close to R4k a battery is what you need, 4 of them are already at R16k.Are the prices drastically dropping for the LiFePo batteries? Would it be worth it to get LA batteries now and then invest in a bigger LiFePo battery pack a few years down the line (5 years give or take).
Taking into consideration that your 4 lead acid will only be 105Ah, with 50Ah usable and the fact that they would need to be thrown away after a couple times of handling a few longer power cuts period you are better off going lithium right away.