Piranha issue (P2 configuration).

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cosmosaure

Registered
Messages
30
Reaction score
22
Location
FRANCE
# of dives
200 - 499
Hello everyone, something strange happened to me today with my Piranha (P2 configuration). When I had done about 3 km of diving in a cave using between 50 and 80% of the engine power, the scooter started to idle. So I returned with my Blacktip that Iwas towing there (I still was 2.5Km from the exit...).
Back home, I noticed that the four batteries in the section located closest to the nose were completely empty, while the four batteries located near the tail were completely full.
Can anyone explain to me what happened?
Usually, all batteries drain at the same rate.
Last clarification, when I returned home, the propeller was practically no longer turning. On the other hand, when I unplugged the section located near the nose (the one whose batteries were empty), the scooter regained all its vitality!
 
Like I said on FB, my guess is a bad PTB in the nose section.
 
Like I said on FB, my guess is a bad PTB in the nose section.
I don't think so, after the dive, I charged all four batteries in the nose section together and they all reached 100% at the same time (about 75 minutes, give or take a few minutes). The batteries have a capacity of 5ah (Dewalt) and my charger is certified for 4ah (Dewalt too).
75 minutes is consistent.
 

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