Tektronix thsbat rechargeable battery pack tektronix thsbat p the tektronix thsbat is a lithium ion rechargeable battery pack for use with the ths3000 series oscilloscopes the 10 8vdc battery pack consists of an array of lithium ion battery cells an internal circuit monitors the charge on the battery and reports the condition on an lcd display at the top of the battery the display indicates the amount of charge in increments of approximately 20 each p tektronix thsbat replacement batte