Hi Josh- Thanks for the advice.  If water is getting to my compartment then I 
have serious problems well beyond the batteries.  Can you clarify what kind of 
ratcheting strap you use?  I don’t think much of the plastic clamp strap that 
came with the boat.  Thanks- Dave

> On May 19, 2017, at 11:17 AM, Josh Muckley via CnC-List 
> <cnc-list@cnc-list.com> wrote:
> 
> ABYC is a little vague with the battery box requiments.  In summery it 
> describes keeping the batteries sufficiently mounted to prevent sliding 
> around.  It describes a cover to prevent inadvertent contact with the 
> terminals.  If you use a ratchet strap and insulated terminal covers then you 
> technically meet the requirements.
> 
> Commercially available plastic battery boxes provide a means of restraint and 
> insulation of the terminals.  Properly made and used, the battery boxes also 
> provide a means of catching acid if it were to leak out.  The lids are 
> designed to maintain a loop seal which prevents water from getting in the box 
> should a flooding situation submerge the box.  Sea water and batteries is a 
> bad combination which can, not just short out and destroy the battery, but 
> also generate chlorine gas.
> 
> I don't have commercial battery boxes in either of my battery compartments.  
> The batteries are strapped down.  The compartments are glassed in to provide 
> leak resistance.  The compartments have wooden lids which prevent inadvertent 
> contact with the terminals.
> 
> I think you are ok removing the plastic boxes.
> 
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
> 
> 
> 
> On May 18, 2017 12:07 PM, "David Knecht via CnC-List" <cnc-list@cnc-list.com 
> <mailto:cnc-list@cnc-list.com>> wrote:
> I have finished my rewiring project and everything seems to be working fine.  
> I ended up putting a Blue Sea Si-ACR to control charging inside the battery 
> compartment as I could find no other accessible space for it.  It is not 
> pretty crowded inside that area with wires, two batteries, and the ACR.  The 
> compartment is a solid bottom fiberglass area with a wood top panel for 
> access and a strap that goes through slots on the bottom of the compartment.  
> The batteries are sealed AGM.  I am considering removing the two battery 
> boxes that the batteries sit inside of inside the compartment as they seem 
> redundant to me with sealed batteries.  I can strap down the batteries 
> instead of strapping down the battery boxes.  This will give me a bit more 
> room and flexibility in the compartment.  Is there any safety reason I should 
> not do this?  Thanks- Dave
> 
> Aries
> 1990 C&C 34+
> New London, CT
> 
> 
> 
> 
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Aries
1990 C&C 34+
New London, CT



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