The Defibtech Lifeline VIEW/ECG/PRO 4-Year Aviation Battery Pack.The TSO-C142a Aviation Defibtech Lithium Battery Pack is the replacement disposable lithium manganese dioxide battery made exclusively for your Defibtech Lifeline VIEW/ECG/PRO AED. This battery has a 4-year life in rescue ready mode, with a full 4-year manufacturer's warranty. This battery features a capacity of up to 125 shocks, or 8 hours of continuous operation.
