What is a SonyBP-81 battery pack?

[drbock]

Charles- I got the 8100. Absolutely very good picture. At least to my middle age eyes. Heavier then I thought it would be. Can't believe Sony still used lame EAC-4 ant. connector. If you need to get around this let me know. I've got a couple spare 1/8" phono to f conn. fem. adapter plugs. If you have user manual could you send me a copy please. The only reason I though maybe it was a clip on pack is that it is 24 v like the 5100. I have searched everywhere and can't find anyone who has seen a bp81. If you need help on the 5200 BP, let me know. I have rebuilt a pack using orig. Sla cells that are still around. Thet actually are X size Hawker Cyclon sealed lead acid 2 volt x 6. 4 cells side by side and 2 end to end with fuse. If you have old pack and don't want to reuse I will buy pack off of you for parts. X size is slightly larger then d with lugs on top. Thanks for your help. I bet Sony didn't sell harpy any 81's. If you had battery and tv to carry, it would not be too portable. All I seen on specs is 7 watt rating at 24 v typical. Almost like the 4 6 v sla gel packs in 5100


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