NOCO Genius smart battery chargers are some of the safest and most advanced on the market. One of our best, the G26000 26 Amp is designed to charge 12-volt and 24-volt lead-acid and lithium-ion batteries up to 500Ah.
https://www.amazon.com/NOCO-G26000-UltraSafe-Battery-Charger/dp/B004LX14Z2

