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Piranha Battery Cradles/Trays
The choice of battery support cradle is predominantly determined by the vehicle make, model, petrol, diesel etc. This tells us about the under bonnet layout, and therefore what physical size auxiliary battery will fit, and its location.Piranha manufacture (right here in Australia) the most extensive range of electroplated steel (not plastic) auxiliary cradles of any company today and our products are engineered to high standards to ensure reliable operation in tough Australian conditions. Not only do we make auxiliary cradles, but also replacement cradles for original equipment units.
Why we Electroplate rather than Powder Coat?
Batteries by nature are extremely corrosive. They have a high percentage acid content and under extreme conditions, such as heat and load, they can give off fumes and weep. The corrosive effects of acids can destroy metal parts in an incredibly short period of time, so all metal parts under a bonnet need to be protected by some sort of coating.
Plastic
Plastic trays resist battery acid but are prone to damage. Heavy 4WD batteries, extreme conditions and the difficulty of bolting the plastic tray to a metal car body make the likelihood of cracking or damage extremely high.
Powdercoating
Powder Coating provides an efficient barrier between metal and acids, but it is brittle and can chip or scratch leaving an area for the acid to penetrate. Once the acid penetrates the surface it travels between the metal and the powder coating (see insert below) and literally eats the tray from the inside out.
Electroplating
Electroplating using zinc, is recognised as the most flexible and reliable method of rust proofing steel. The process uses electricity to deposit a fine coat of zinc onto the steel. The zinc bonds atom by atom at a molecular level to provide protection from corrosion. Piranha uses 8 to 12 microns of zinc with a yellow chromate conversion to impart a high level of wear and corrosion resistance.
