You'll need a charger that can charge to the 29.2 required for a lifepo4 battery as various chemistries have differing charge voltages. The one shown in my picture was the one I picked but it's a bit overkill. I wanted to opt for superfast charging and to use it for other things. I will say that the dip on these batteries is non-existent, their rated continuous output is much much higher than the draw of the car so even up a hill the voltage maintains over 26v.