July 5, 20214 yr I would like to start with the battery - I want to use 1 or 2 Pylontech US2000B/US3000 batteries. I have had it with lead acid batteries. I need a smallish sine wave inverter of say 1 to 2kW that would have a MPPT input for future use. Backup power only. Obviously compatible with the Pylontech without any fancy interfaces. Recommendations? Regards Paul
July 5, 20214 yr 35 minutes ago, Paulbloggs said: I would like to start with the battery - I want to use 1 or 2 Pylontech US2000B/US3000 batteries. I have had it with lead acid batteries. I need a smallish sine wave inverter of say 1 to 2kW that would have a MPPT input for future use. Backup power only. Obviously compatible with the Pylontech without any fancy interfaces. Recommendations? Regards Paul I recommend the Growatt SPF3000TL-48v. Its a 3kw and compatible with the Pylontech batteries, simple and user friendly.
July 6, 20214 yr I second the recommendations from 87 Dream I started with a Growatt 3 Kw system and found out that I needed that little bit extra I now have the SPF5000ES 2 years later
July 6, 20214 yr Author If it was for me personally I would be in 100% agreement. But it is for an elderly couple who are adamant they will want nothing more than their TV, DSTV and a desk lamp. This is why I am aiming for a 2 - 3kW inverter. I have successfully supplied these 1kW trolleys before for similar loads but after the repeated failure of the gel 100Ah batteries I will only supply lithium batteries in future and thus need a compatible inverter. The PV input is for the future since Bryanston is experiencing longer and longer power failures as load shedding drags on. The Growatt looks attractive. How about Solis? Solis 3.0kW Mini 4G Single Tracker?
July 6, 20214 yr I totally agree with @87 Dream regarding the 5 kW VM III, the 48 volt lithium battery is actually less expensive than a 24 volt lithium baterry, eg Pylontech 2000 available at powerforum store for around R11,600
July 6, 20214 yr Author The Kodak VMIII 48V 5kW is R7530 from Segen and as you say only a few hundred more than the smaller inverters. I have read on this forum that the suppliers do not like to sell you less batteries than the inverter is rated for? So for a 5kW inverter I would need 104A = 4 Pylontech US2000. Now in this case I am supersizing the inverter but do not need the kWh capacity for the current anticipated load. I anticipate I will need 1.5kWh (that is a very generous guess) so will need only 1x US2000. Edited July 6, 20214 yr by Paulbloggs
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