Equilibrium Replacement battery for horse massage mat

2 years warranty. Designed to be used with both the massage mat and the massage glove Equilibrium. The charger has 4 sides to adapt to all countries. Equipped with a charge indicator light. Attention: charger compatible to power old batteries (black or blue massage mat edition). Batteries 2016 edition not compatible with old chargers. Charger and battery not compatible with old version of massage glove (blue).