Some camera makers specifically EXCLUDE lithium batteries, even if the original requirements state silver oxide or alkaline manganese...Bronica is one example. They state "The performance of lithiums vary greatly, as there are several types. They can be engineered for high amp draw, and lower shelf life; or low amp draw, but longer shelf life. They have the potential for the highest energy density per volume of any low cost cell, but the trade off has been made, in "consumer" applications, for long shelf life. This allows these cells to be terrific for hearing aids, and pacemakers....but poor for an intermittent high amp draw requirement like a Bronica", and then specifically state "forget it" for both the SQ and GS-1 models, while the ETRS is "OK" for lithium.
and then specifically state "forget it" for both the SQ and GS-1 models, while the ETRS is "OK" for lithium.
Odd! Mamiya recommended against lithium for years in their 645's but now claim they are fine just overkill as reg batteries work just as good.
I just had a look in the Hove book "Complete Bronica Systems" and it quotes the use of a 6v silver oxide Px28 or lithium Px28L equivalent for the GS-1 as well as the ETRSi, so maybe the thinking has changed over time? I've only got SQ models though, so can't comment from experience of the others.
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