I have 5 EL-Con TCCH -288-12 4kw battery chargers. These things can charge your batteries fast!
They are configured for 288v output currently but they can be reprogrammed for any output voltage. They supply12amps max, however, they can also be linked together in parallel to increase the charging amperage output if need be. These are very high quality chargers and have an efficiency of 93% vs 80% of typical chargers.

Can use either 120v or 240v input.

These are all NIB and never been used.

I bought them for doing a large battery storage/ inverted 3 phase system for my shop. I spent too much on the shop and now don't have enough for the large battery bank. These are typically $1,700 I am looking for $850 ea obo.

will do a price break if you buy them all! Located in Las Cruces, NM, but willing to ship!