[easy clean]

can someone please help me, i'm trying to wire up a second lesuire battery in the back of the van to power the pump for wfp. it also needs to be wired up to charge of the van when its running.

i put the battery in the back and wired up the pump, to charge it i found an ignition live from the back of the ignition barrel and ran it direct to the battery, but prob is still getting flat van battery after 30-40 mins work and its driving me mad!!!!!!!

how have you guys done it, help is much needed

[Nathanael Jones]

You need a relay:
http://cgi.ebay.ie/100A-INTELLIGENT-VOLTAGE-SENSING-VSR-Split-Charge-Relay_W0QQitemZ280363596948QQcmdZViewItemQQptZUK_Cars_Parts_Vehicles_Terminals_Cabling_ET?hash=item4146f8fc94&_trksid=p3286.c0.m14&_trkparms=65%3A2|66%3A2|39%3A1|293%3A1|294%3A50

[concept]

http://cgi.ebay.co.uk/12V-Heavy-Duty-Split-Charge-Relay-Kit-Battery-Amp-3m_W0QQitemZ280363683660QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CommercialVehicleParts_SM?hash=item4146fa4f4c&_trksid=p4634.c0.m14&_trkparms=%7C293%3A1%7C294%3A30

is a complete system

[perfectpanesplymouth]

or you could put a diode in the wire

[eclipse]

i had a system fitted by pure freedom the split charge relay is built into the flow controller

[windowswashed]

Or a smart split charger if it's a vw transporter T5 (charges from the alternator instead of the battery) so it doesn't do damage to electronics sensor box

[landy2]

hello eclipse  i have just got one of them flowmasters like yours from pure freedom have only had time to fit it so it just run the pump what i want to now is does it charge the battery up well for the amount of driving you do cheers

[eclipse]

well ive had it about 6 months im out every day quite a compact round and it hasnt let me down yet

good piece of kit if you ask me

[landy2]

will get it wired up week end if not busy cheers