Hi, I recently bought a Split Charger on Ebay, fitted Monday and works a treat. No more need to externally Charge the Pump Battery.
Absolutely easy to Wire; no need to connect to the Alternator. Connect to Car BAttery and then to your Pump BAttery, through a Relay a discharge of the Car BAttery is stopped. Pump BAttery is only charged from Car Battery when Car is running.
Cost 22,-- with Postage, took 15 mins to connect.
If interested looon Ebay Item number: 110095443333
Terry