Types of BB Batteries

Handy Reference Chart:

OEM batteries by series
71XX – Dark blue (C-S2) – 1000mAh

81XX – Gold/yellow (C-M2) – 1400mAh

83XX – Dark blue (C-S2) – 1000mAh

87XX – Dark Blue (C-S2) – 1000mAh

88XX – Green (lime) (C-X2) – 900mAh

AT24C256 Serial I2C Interface EEPROM Data Storage Module for Arduino PIC TEEHEN picture
AT24C256 Serial I2C Interface EEPROM Data Storage Module for Arduino PIC TEEHEN
$5.29 SOP8 SOIC8 Test Clip For EEPROM 25CXX/24CXX W CH341A 24 25 Series Flash Bios USB picture
SOP8 SOIC8 Test Clip For EEPROM 25CXX/24CXX W CH341A 24 25 Series Flash Bios USB
$19.11 150 PCS XICOR X2816BP-25 2KX8 EEPROM 5V, 250ns, PDIP24 INTEGRATED CIRCUITS picture
150 PCS XICOR X2816BP-25 2KX8 EEPROM 5V, 250ns, PDIP24 INTEGRATED CIRCUITS
$3.99 135 PCS XICOR X2816BP-25 2KX8 EEPROM 5V, 250ns, PDIP24 INTEGRATED CIRCUITS picture
135 PCS XICOR X2816BP-25 2KX8 EEPROM 5V, 250ns, PDIP24 INTEGRATED CIRCUITS
$11.5 3pcs SEEQ DQ2816A-300 16K EEPROM DIP24 picture
3pcs SEEQ DQ2816A-300 16K EEPROM DIP24
$9.25