After evaluation of telemetry transceivers that were overheating, it was determined that there were two construction types of batteries, one of which is undesirable for use in the philips transceiver.Batteries are (b)(6).The top battery may become displaced and the tail of the spring makes contact with the cathode and anode separated only by the shrink wrapper.Furthermore, the only insulation is the "shrink wrap" label and when it flows and thins out after contact with the spring, it allows the tail of the spring contact to penetrate the wrapper.When the wrapper is breached the battery is shorted allowing the surface temperature to reach in excess of 109 degree c.Since we cannot prevent nor predict this displacement, we have chosen to remove this undesirable battery type in our telemetry transceivers.
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