Lauren,

I think the standards committee would argue that this hazard is dealt with by 
the requirement in EN 60335-2-29 §7.1 for a statement in the instructions " 
WARNING: Explosive gases. Prevent flames and sparks. Provide adequate 
ventilation during charging". 

Regards

Nick. 






On 9 Oct 2013, at 16:58, "Crane, Lauren" <[email protected]> wrote:

> Experts,
>  
> I’m getting into some new (for me) territory, looking at a system with a 
> battery charger and a sealed, no maintenance, lead acid battery. The battery 
> charger claims an IUU charging profile and assessment to the subject 
> standards. I have read the standard’s abnormal operation section and see it 
> requires consideration of potential “dangerous malfunctions”.
>  
> Does anyone know whether application of these standards to a charger 
> typically sufficiently considers the possibility of overvoltage output that 
> could over charge the target battery (potentially producing more H2 than the 
> battery can absorb)?
>  
> Regards,
> Lauren Crane
> KLA-Tencor
>  

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