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When the Battery indicator illuminates with a continuous violet or red color (the normal indication while
charging is a blue color),
AND
the preamplifier automatically switches into Charge mode in less than
about 6 hours (while continuously playing records), the internal rechargeable batteries should be replaced.
The AGM lead/acid battery is a widely available type, commonly used for security alarm systems or
remote power backup (from solar or small windmill).
Seta Plus:
Any sealed type rechargeable 6 volt lead-acid battery with dimensions of 3.7 (h) x 6.0 (w) x
1.3 (d) inches, offset (from centerline) 0.187” spade lug terminals and capacity of 7.0 ampere-hours is
acceptable. For example, McMaster-Carr (mcmaster.com) part number 7448K24 (Power Sonic PS - 670).
Seta:
Any sealed type rechargeable 6 volt lead-acid battery with dimensions of 2.4 (h) x 5.3 (w) x 1.3 (d)
inches, offset (from centerline) 0.187” spade lug terminals and capacity of approximately 2.3 ampere-
hours is acceptable. For example, McMaster-Carr part number 7448K13 (Power Sonic PS - 630).
•
The batteries
must
be replaced in pairs, and only sealed lead-acid type batteries can be used.
All
other battery types are incompatible with the internal battery monitoring and maintenance circuitry
and Seta power and voltage requirements.
•
It’s best to obtain a “fresh” replacement when needed, rather than keeping spares on hand, because
degradation will begin to occur if stored for more than a few months without charging. (The Seta
may be operated continuously, even with degraded batteries, by using the Charge Lock button, so
waiting for replacements to ship shouldn’t be a problem.)
•
Replacement batteries should be at ambient room temperature before installing.
The included AGM Battery Replacement Instructions (Appendix 2) provide instructions for replacing the
batteries. If you don’t wish to perform the battery replacement yourself, the Seta can be shipped to
Channel D for battery replacement.
Please contact Channel D for shipping information and pricing, and
a Return Material Authorization.
