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Blue Water Supplies Limited. Jersey, Channel Islands Tel.+44(0)1534 739594 Blue Water Equipment Specialists Committed to Value and Service... ALL PRICES EXCLUDE VAT & Jersey GST Individual prices may not always be competitive... please contact us with your shopping list for a extremely competitive quotation. IMPORTANT Blue Water Supplies is based in Jersey in the Channel Islands. We do not charge VAT although VAT or a local sales tax may be payable on delivery.* (Orders with a value of £18 or under are VAT exempt). Goods collected from Jersey after 1st May 2008 may be liable for Jersey GST(General Sales Tax) at 3% *An administration surcharge may sometimes be added by the postal authority or company. Blue Water Supplies Limited reserves the right to change prices at any time without notice. Although every effort to ensure prices and other details are correct, Blue Water Supplies accepts no responsibility for any errors or omissions.
© Blue Water Supplies Limited 2002-2010 | Batteries
The type of charging equipment you choose should be directly related to the capacity of your batteries. The number of batteries themselves is less important, although it is probably better to have several, smaller batteries than just one or two large ones. This is for reasons of reliability and weight distribution. It is also useful to have a small back up battery mounted high up in case of flooding to ensure continued operation of the radio equipment. The types of batteries you choose are also important. There is now a huge range available on the market yet getting the right ones is very important. The first thing to understand is the difference between normal car or truck batteries, marine or leisure batteries and deep cycling batteries. With a car or truck the main use for a battery is to start the engine. Once it is started, virtually all the electrical power that the vehicle will need will come from the alternator, with the battery acting as a sort of buffer soaking up excess power. There really shouldn’t be any need to use the battery much without the engine running, so it shouldn’t ever get flat. In other words you only use part of its capacity during normal use. The situation on a boat is quite different on a boat. Whilst you will also need the battery to start the engine, once it is stopped, you may well continue to use the battery power to run electronics, autopilots and all kinds of equipment. This drains more power from the battery to the extent that you may even run the battery completely flat on a regular basis. This would damage a normal car or truck battery. It would also mean that you would be unable to start your engine. For this reason it is normal to have a separate engine battery which charges first. A battery which is designed to be regularly discharged almost completely before recharging is know as a deep cycling battery, whilst a battery half way between deep cycling and a car style battery is generally known as a marine or leisure battery. For Blue Water use it is recommended to use deep cycling batteries other than for the main engine battery which should be a leisure battery.
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