JasonL 0 Report post Posted March 10, 2009 Whats needed for me to run a second battery. Will it help with my audio gear im running. will I need upgrades of any sort. Cheers innovance. Quote Share this post Link to post Share on other sites
huff3r 347 Report post Posted March 10, 2009 If your alternator can't keep your existing battery charged then all i can see a second battery doing is draining away as well.... maybe time to look at a better alternator? Quote Share this post Link to post Share on other sites
JasonL 0 Report post Posted March 10, 2009 If your plan is to add a second battery to grunt up the supply to big current sucking grunty amplifiers then: 1) grunt up your altenator to keep pace with batteries 2) grunt up the cabling to cope with extra current 3) locate the new battery as close as possible to the amoplifiers and use the shortest possible supply cables 5) USE a smoothing capacitor to take out the lumps coming from the alternator 6) use the shortest practical and suitably grunty cables from the amps to the speakers 7) Use decent connectors and pay attention to detail whenrouting cables and connecting enjoy. If you are using middle of the range cear just focus on teh capacitor and cabling What sort of alternator can fit in down there any? I know it will need custom mounts. I will have 1 guage wiring from battery to amps and for grounding. Battery will be mounted in boot so close to amps. whats a smoothing capacitor. that just a cap? Quote Share this post Link to post Share on other sites
rogan 1 Report post Posted March 10, 2009 You'll also need some way of controlling charging of batteries. I suggest a BEP Marine VSR (voltage sensing relay). I didn't have a cap in my Rangerover with a dual battery set up and medium power stereo. Quote Share this post Link to post Share on other sites
