Rowland Synergy IIi, Cadence and BPS-1

My listening sessions usually last for about a maximum of 3.5 hrs.This is both with the power plug and unplugged. I think Rowland said if you run the bps totally off the battery (ie unpluged), you should be at least be able to play it for 2 hrs or it is time to change the battery. I recently had a technician change all the batteries in my unit and it cost me about $260. My unit had 4 batteries. The single chassis may have different type or number of batteries.

Thanks again for all the info. The BPS-1 should arrive today. I'll charge it today and try to set it up tomorrow. I'll let you know how it goes. Thanks again!

Well the unit arrived. I have the unit hooked up to AC power and have it correctly hooked up to the Synergy IIi and the Cadence phone pre. Both are powered up and running with AC.

With the BPS-1 getting AC power, both the 'full' green light is on and the blue 'AC' light is on. It says in the manual, that when the green light is on it
means that the batteries are at least 50% charged. After about two hours of
charging I pushed the mode button to the battery selection and the unit quickly powered off. I followed the manual instructions and pushed the mode button down for five seconds to reset the supply and power handling, and the unit powered back up on AC. Again after a couple of hours I tried to switch to battery mode and the unit immediately powered off and then went back to AC.

I'm guessed the batteries were fully discharged and needed more time to charge up, but with the green light saying 'full', the manual states that the
batteries are at least 50% charged. Il let it set overnight and charge, but
the same thing will happened again this morning and the battery
mode won't function.

The seller said the unit had new batteries. I'm confused even older batteries won't even hold a few minutes of charge after an all night charge-a-thon.

Thanks in advance for any info or ideas out there....

Sorry to hear about your problems. I bought my bps used and never received a manual with it. With my unit only the green light is on. The batteries in my unit were almost dead when i bought it. It would play for 1/2 hr before 1 would lose a channel. There are 4 batteries in my bps with 2 batteries powering each channel. The technician who changed my batteries said that 2 of them where in really bad shape and the other 2 were ok. Thus it seems strange that your unit won't even switch to the battery mode. Did the seller change the batteries himself? If so, did he do it properly? Your best bet is to contact Rowlands directly.

I have a Synergy IIi hooked up to 2 70 amp-hour UPS batteries that I purchased for $60. The preamp can run for days without requiring a battery charge. The sonic improvement is substantial.