Hello All:
I recently acquired a PS2 big brute in green color and I want to replace the battery with a BCR. Is it the 3v version or the 5v version?
In addition, how do I get to the battery?
Many thanks!
Leon
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The instructions are in the manual that came with the engine - be advised that you must DISASSEMBLE the three sections to access the center cab which contains the battery!
The trick is NOT scratching any paint! 
Thanks @Art. Unfortunately, i bought it without the manual and couldn't find it either on MTH website.. I'll figure it out.. but sounds like a pain in the ***... I might just leave it be...
Greatly appreciate it.
Unfortunately, I do not have my P-2 Brute manual here in Nashville, TN or I would make you a copy of the instruction pages. Try calling MTH Service after the holidays and maybe they can help you.
I'm 99.999%, and then some, positive the correct choice of BCR would be the 3 volt. The Brute is only a few years old. The 5 volt PS2 units were stopped over 12 years ago. Find the charging port on the Brute and you should see a box with two contacts for the charger. That indicates a 3 volt system. A barrel (round) jack, or no jack, indicates an older 5 volt system
Thanks @Art and @Marty.
I managed to took it apart VERY CAREFULLY with my wife's help, it's really a crappy design!! It looks like a 3v, I'm waiting for my BCR to get here and I'll put that in once and forget about it.
Thank god the Goliath has the PS3 san battery.
Greatly appreciate you both for your help.
