12V 2AMP SLA Battery Charger and Tender for hr9-12 gp1270 sla1075 bp8-12 Key Specifications/Special Features: 3-stages charging modes: Constant current (2.0A) Constant voltage (14.3 to 14.7V) Floating voltage (13.5 to 13.8V) LED indicate charging status: Red: in charging Green: fully charged Safety protections: Short-circuit protection Battery polarity error protection Over-voltage protection Lead-acid battery pack Suitable for 12V