Replacement Batteries

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This document:

Introduction

HP Calculators take an assortment of different types of batteries. The following questions are answered in this document:

Where to buy the batteries

They are available in most drug stores, camera stores or grocery stores. Other places to purchase batteries include the Internet.

What type of batteries

Supported model	Battery description	#	Common P/N	Discontinued models
	1.5-volt button-cell	2	Duracell PX76A/675A Panasonic LR44	HP 6s
	1.5-volt button-cell	1	Duracell PX76Z/675A Panasonic LR44	HP 6s Solar
HP 9g, HP 9s	1.5-volt button-cell	2	Duracell PX76Z/675A Panasonic LR44
	1.5-volt button-cell	3	Duracell PX76A/675A Panasonic LR44	10b,11c, 15c, 16c, 42s, 32s, 17b, 17bII, 20s, 32sII
HP 10bII, 17bII+	3-volt CR2032	2	Duracell DL 2032 Panasonic CR2032
HP 12c (All serial numbers below CN11500001)*	1.5-volt button-cell	3	Duracell PX76A/675A Panasonic LR44	11c, 15c, 16c, 42s, 32s, 17b
HP 12c (Beginning with serial # CN11500001), HP 12c platinum and prestige series	3-volt CR2032	1	Duracell DL 2032 Panasonic CR2032
	1.5-volt N-cell	3	Duracell MN9100 Panasonic AM5	19b, 19bII, 28c, 28s
HP 30s	1.5-volt button-cell	2	Duracell PX76A/675A Panasonic LR44	11c, 15c, 16c, 42s, 32s, 17b
39g+, 48gII (before serial number CAN 62900000), 49g+	1.5-volt AAA	3	Duracell MN2400 Panasonic AM4	38g, 39g, 48s, 48sx, 48g series, 49g
39gs, 40gs, 48gII (starting with serial numbers CNA 62900000), 50g	1.5-volt AAA	4	Duracell MN2400 Panasonic AM4
39gs, 39g+, 40gs, 48gII (both versions), 49g+, 50g	3-volt CR2016	1 (used as memory backup)	Duracell DL2016 Panasonic CR2016	128 Kb RAM card HP 82215A, 1 MB RAM card HP822

*Including serial numbers that start with other letters and those that start with numbers.