Thanks for all your advice here, helps a lot! I think the battery in my PIPsqueak is dead as well. Can you please post a link to the battery you bough? I can't find it on the Componentshop site.
Mics: DPA 4061's, 2xSony ECM-101, Audix 1290 capsules, Beyerdynamic CK930's, Countryman B3's
BBs: 2x custom made bb's
Pres: Tinybox V1.5, Church Audio ST-9100, PIPsqueak
Recorders: Edirol R-09HR, Edirol R-09, Sony TCD-D8, Sony TCD-D3, Sony MZ-R50, Tascam DR-2d, Sony PCM-M10