Batteries

The new generation of lithium ion deep cycle batteries – suitable for 12v, 24v and 48v systems – gives you more power and a longer lifespan with zero maintenance and up to 70% less weight than standard batteries. This new generation of batteries is perfect for off-grid or on-board systems, as deep discharging will not shorten the battery’s lifespan like conventional batteries.

Lithium Batteries require a reliable BMS (battery management system) which must be used under any circumstance when using or storing batteries.
*Use of batteries without some type of BMS will void warranty, see CALB/Winston user manuals for more information.
CALB recommends Orion BMS http://transmarinepro.co.nz/product-category/battery-management-systems/

http://transmarinepro.co.nz/wp-content/uploads/2016/09/CALB_Manual-Specs-Warranty_SM.pdf
http://transmarinepro.co.nz/wp-content/uploads/2016/09/LithiumManual_small.pdf

We also supply high quality, low maintenance gel and AGM batteries, as well as traditional wet-cell batteries for the budget-conscious, in 6v or 12v models.