pure sine wave inverter with battery charger (ЮАР - Тендер #39302788)

I am looking for pure sine wave inverters with built in 1st life Lithium Iron Phosphate batteries(LiFePO4) that are 1kWh/2kWh/3kWh for various customers.
20 Units 1kWh
10 Units 2kWh
10 Units 3kWh
The inverter must have below features. Will you be able to provide circuit boards or components so as to cover the customers in case there are issues/failures? What will be the warranty terms and conditions?
Pure Sine Wave
Solar MPPT/On-Grid/ Off-Grid / Portable
Quick charging and Energy Efficient
Higher Back-up and Longer design Life
PC/phone/wifi Compatible
Wall Mountable/portable design
All in one protection: Over load, over charge cut off, battery reverse polarity, surge in mains, battery low, Battery Deep Discharge, Short circuit auto cut off, Battery Hi, PV Reverse, Over Temp, resettable Circuit breaker

Country: South Africa

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