If anyone is still looking - the OEM battery is a GREATPOWER GSP0931134 7.4v
I was unable to find a replacement, or a suitable Lithium Polymer alternative, so I decided to give the 18650s a go like sebatianmeyer1 recommended. I am attempting to use the factory BMS board, and will post my results as a guide for others.
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EDIT #1:
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This is how I wired the batteries:
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[image|1008185]
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I am using the original BMS board, and Sony VTC6 3000mah batteries that I purchased from imrbatteries.com (there is a lot of concern with fake Sony 18650 batteries and they seem legitimate). The unit now charges and functions great! Haven't tested runtime of the batteries yet because of my issue below.
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I made a major mistake - to get the batteries to fit after my hefty coating of electrical tape, I had the brilliant idea to remove the firewall from the clear plastic cover thinking it was for water resistance only - big mistake!!! Do not do this, as it also seals the air for the woofers to function correctly. Air now flows out the ports and the bass muffles. I put a red line on the image below for reference. I am now figuring out a way to seal it back up, thinking of pumping silicone or hot glue in there..
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[image|1008186]
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I am no expert, so if someone finds an issue with this method please let me know!
If anyone is still looking - the OEM battery is a GREATPOWER GSP0931134 7.4v
I was unable to find a replacement, or a suitable Lithium Polymer alternative, so I decided to give the 18650s a go like sebatianmeyer1 recommended. I am attempting to use the factory BMS board, and will post my results as a guide for others.