Batteries in the loop?

[211ratsbud]

There's at least one CCR that had batteries in an unsealed portion of the loop, the older AP.

A lot of ccr's say "no batteries in the loop"

This is leading me to believe there's a number of accidents or fouls happening due to batteries in the loop.

Was this at one time a real risk that we had to worry about? What is the real risk?

I'm hoping to find answers that support the reasoning based on actual events or probalistic outcomes.

 

[evandroairton]

As far as you keep the compartment well thight, and follow thw instructions it's fine.
AP used CRP2 since 1997, CR123 after, and sealed recharble from 2016 (the former ones could be upgraded)
I myself being using CRP2 since 2016 with no problem. Once i got a new lid will pick a rechargeble.
Só far so good, never got a problem, neither my fellows who uses them

 

[happy-diver]

The risk is losing whatever your batteries are controlling, in the event of short circuit
Like when I flood torches that work at reduced shining bubbling and producing acid

 

[evandroairton]

On the ap specifically, each controller has an independet battery, so in such an event, the other tooks over if it loses power. Anyway, with the newer ones it's highly unusual to happen.
AP it's a highly reliable unity, and used in many recreational, media scientific projects worldwide

 

[InWay2Deep]

I won't even put a battery in my Dry Suit, much less IN my loop, ever seen a modern battery catch fire? Who wants to breath that?

 

[Snusmumrik]

There's at least one CCR that had batteries in an unsealed portion of the loop, the older AP.

A lot of ccr's say "no batteries in the loop"

This is leading me to believe there's a number of accidents or fouls happening due to batteries in the loop.

Was this at one time a real risk that we had to worry about? What is the real risk?

IMHO. I want to clarify that we are talking about batteries stored
in loop under amient pressure (in an unsealed portion of the loop).

1. Inspo. Batteries in loop are Li-MnO2 galvanic cells (CPR2, 6v, not rechargeable).
Stated as using non-volatile non-toxic electrolyte these cells are
stated as usable in loop.

2. NiCd/NiMH recargeable can be crushed by external pressure. Alcaline electrolyte release in loop can cause extreme larynx irritation.

3. Alkaline and salt batteries. Same as for for NiCd - electrolyte release.

4. Various lithium rechargeable cells - can be crushed by external pressure,
electrolyte stated as very toxic and can cause fire.

So, safety considerations goes toward isolate batteries from loop.

Personally i've never heared of accidents or fouls happening due to batteries in the loop.

Dived a lot of years (somewhat near 12) with DIY PPO2 meters in ambient pressure case, connected to loop and powered by 9v 6F22 batteries - no issues, but, batteries are really
too far from loop for some fumes to reach in.

 

[211ratsbud]

IMHO. I want to clarify that we are talking about batteries stored
in loop under amient pressure (in an unsealed portion of the loop).

1. Inspo. Batteries in loop are Li-MnO2 galvanic cells (CPR2, 6v, not rechargeable).
Stated as using non-volatile non-toxic electrolyte these cells are
stated as usable in loop.

2. NiCd/NiMH recargeable can be crushed by external pressure. Alcaline electrolyte release in loop can cause extreme larynx irritation.

3. Alkaline and salt batteries. Same as for for NiCd - electrolyte release.

4. Various lithium rechargeable cells - can be crushed by external pressure,
electrolyte stated as very toxic and can cause fire.

So, safety considerations goes toward isolate batteries from loop.

Personally i've never heared of accidents or fouls happening due to batteries in the loop.

Dived a lot of years (somewhat near 12) with DIY PPO2 meters in ambient pressure case, connected to loop and powered by 9v 6F22 batteries - no issues, but, batteries are really
too far from loop for some fumes to reach in.

Great information thank you.