In 2010 I had some problems with my replacement BLM-1 batteries for my Olympus E-30. This page records the charge history of the batteries since October 2010. See the detail page for more information.

Battery		Date		First		Last		Count		Status		Cumulative		Comments
		started		image		image						count
5		15 October 2010		12207		12242		36		Resurrected
2		16 October 2010				12490		248		OK
6		19 October 2010				13266		776		Dead
2		30 October 2010				13762		496		OK		745
7		10 November 2010				14080		318		Charged
2		16 November 2010				14082		2		OK		747
7		16 November 2010				14367		285		Sick		603
2		20 November 2010				14433		66		OK		813
7		20 November 2010				14487		54		Dead		657
5		22 November 2010				14509		22		Sick		58
2		25 November 2010				14514		5		Charged		>818		partially discharged at start
3		25 November 2010				15036		522		Charged		>522		partially discharged at start
8		30 November 2010				15989		953		Charged		953
9		13 December 2010				17276		1287		Charged		1287
10		7 January 2011				18413		1137		Charged		1137
8		22 January 2011		-		19403		990		Charged		990
9		7 February 2011				20672		1269		Charged		1269
10		27 February 2011		-		21685		1013		Charged		1013
2		19 March 2011				21847		162		Charged		162		Not charged for 4 months, but very quick recharge
3		19 March 2011				22013		166		Charged		166		Not charged for 4 months, but very quick recharge
9		19 March 2011				22019		6		OK		6
2		19 March 2011				22189		171		Charged		171
3		26 March 2011				23099		910		Charged		910
8		5 April 2011				23465		366		Charged		366
9		12 April 2011				24286		821		Charged		821		Left powered on for hours
10		24 April 2011				25452		1166		Charged		1166
3		14 May 2011				27154		1703		Charged		1703
8		4 June 2011				27990		746		Charged		746
9		24 June 2011				29309		1319		Charged		1319
10		14 July 2011				30429		1119		Charged		1119
3		31 July 2011				32638		2209		Charged		2209
8		28 August 2011				33149		511		Charged		511		Left powered on for hours
9		8 September 2011				34816		1667		Charged		1667
10		3 October 2011				36245		1429		Charged		1429
3		28 October 2011				38071		1826		Charged		1826
8		19 November 2011				39231		1160		Charged		1160
9		6 December 2011				40738		1507		Charged		1507
10		24 December 2011				41581		741		Charged		741
3		4 February 2012				42223		642		Charged		642
8		15 January 2012				42839		616		Charged		616
10		25 February 2012				42887		48		OK		48		Not discharged
9		25 February 2012				43676		789		OK		48		Not discharged
10		18 March 2012				44399		723		Charged		771
8		14 April 2012				45047		648		Charged		648
3		27 April 2012				45443		396		Charged		396		Left powered on for hours
8		9 May 2012				45995		552		Charged		552
9		22 May 2012				46662		667		Charged		667
10		11 June 2012				47468		806		Charged		806
3		10 July 2012				48519		1051		Charged		1051
9		19 August 2012				48660		141		Charged		141		Not discharged
8		19 August 2012				49675		1015		Charged		1015
9		13 September 2012				50517		842		Charged		842		Left powered on
10		24 September 2012				51438		921		Charged		921
3		20 October 2012				52673		1235		Charged		1235
8		17 November 2012				53395		722		Charged		722
9		14 December 2012				54477		1082		Charged		1082
10		3 January 2013				55265		788		Charged		788
3		21 January 2013				56333		1068		Charged		1068
8		16 February 2013				57311		978		Charged		978
9		9 March 2013				57996		685		Charged		685		Much live view
10		1 April 2013				58763		767		Charged		767
3		26 April 2013				60302		1538		Charged		1538
8		22 May 2013				61050		748		Charged		748		Camera left switched on
9		20 June 2103				61877		827		Charged		827
10		27 July 2103				62489		612		Charged		612
3		30 August 2103				63820		1331		Charged		1331
8		1 October 2103				64967		1147		Charged		1147
9		26 October 2103				65082		115		Charged		115		Not discharged
9		26 October 2103				65937		855		Charged		855
10		18 November 2013				66729		792		Charged		792
3		25 December 2013		-

The status column has the following meanings:

• OK: still has charge, removed for some other reason.

• Charged: Battery was discharged, was successfully charged again.

• Sick: Battery took some charge, didn't complete charge. Battery still usable.

• Dead: Charge failed, battery showed no voltage.

• Resurrected: Charge failed, battery showed no voltage after charge, but later showed voltage again.