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The reported complaint that "the fully charged autopulse li-ion battery (sn (b)(4)) didn't power up the autopulse platform" was not confirmed during functional testing performed at zoll.The status indicator on the battery showed one flashing red led when received by zoll service.A flashing red light indicates that the battery is permanently disabled and cannot be used in an autopulse platform.During visual inspection, no physical damage or anomalies were observed.The battery's archive was downloaded and reviewed at zoll to help verify the reported complaint.In february 2022, an "oz_wdt deadman" error occurred after charging.This is a charger-battery communication error, but it had no effect and did not cause damage to the battery.The battery was last successfully charged on 21 january 2023 with four solid green leds, several days prior to the customer's reported event date.Around february 2023, another "oz_wdt deadman" error occurred when removing the battery from the charger.This error resulted in the internal clock advancing more than 100 years into the future.One amber led was shown on the battery at that time, indicating that the battery was not fully charged.After the customer placed the battery into the charger, it passed the charging stages but was disabled by the charger because of the incorrect date on the battery's internal clock.The battery failed to charge in a known-good autopulse multi-chemistry battery charger (mcc) because the battery was already disabled upon receipt.The status leds on the mcc showed a fail "x" (red led) light, indicating that the charger could not charge the battery.The status leds on the battery still showed one flashing red light after the charging attempt.
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