Battery for Baxter, Sigma Spectrum Infusion Pump and Vet IV Pump: 35083, 35162, 35700 and 35724. Fully replaces battery number 55075-2 and S00225 31% Increase, or 3-4 Hours Longer of Pump Operating Time This is an 'insert' battery and requires the original battery case Li-ion 7.4 V 2350 mAh Japanese Cells by Panasonic Manufactured by Artisan Power - Cells Made in Japan - Assembled in Taiwan