Hi,
Has anyone encountered the controller number C571-30-521 yet? photo controller
The sticker on it says it's a 52V version, but I can easily set the current to 30A and the under-discharge protection to 39V (SPEEED app)
For the moment the motor works with a 48V 20Ah battery and it's great, I notice quite an improvement after switching from the BBS02b, but it's on my mind to buy a 52V 25Ah battery, do you think it's a “multivolt” controller and will also accept a 52V battery according to the sticker without a problem?
BBSHD controllers:

Photos of the patient
Has anyone encountered the controller number C571-30-521 yet? photo controller
The sticker on it says it's a 52V version, but I can easily set the current to 30A and the under-discharge protection to 39V (SPEEED app)
For the moment the motor works with a 48V 20Ah battery and it's great, I notice quite an improvement after switching from the BBS02b, but it's on my mind to buy a 52V 25Ah battery, do you think it's a “multivolt” controller and will also accept a 52V battery according to the sticker without a problem?
BBSHD controllers:
- C769-51-501 - 48V 30A
- C571-30-506 - 52V 28A
- C571-30-521 - 48V/52V 28/30A????
Photos of the patient
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