MaximalPower PTB RYO14.4X2+PTC RYO01 Two 14.4V 2000 mAh NiMH Power Tool Replacement Batteries with One Charger Combo Set Please make sure your MaximalPower brand product sold and shipped by Amazon! Item shipped from other vendor is not covered by MaximalPower Warranty For OEM: 1311166,1314702,1322547,1400144,1400655,1400656,1400669,1400670,1400671,4400011,130111073,130224010,130224011,130224017,130240010,130245005 Battery: Integrated microchip prevents from overcharging and lengthens battery life! Charger Type: Tri-Chemistry (Li-Ion / Ni-Mh / Ni-Cd), can replace up to 5 chargers Charger: Built-in circuit protection helps prevent overheating, extended charging times, short circuit and detects damaged batteries