FITTING EXTRA BATTERY TO CAR ??

[WARLOCK]

Help needed please, my son has fitted a cb radio and HE keeps running his battery down and had to quite often had to cadge a jump start ?? dose anyone know the way i am told a second battery can be fitted so the engine will charge this battery which is used to power the cb radio leaving the car battery full so being able to start the car after useing the cb radio for long overs ( and power amp. ) any thoughts i am told the same thing can be used on a caravan ???

[Edd200sx]

Split charge system required

[WARLOCK]

what the hell is a split charge system and a BIG how do i do that ?? PLEASE

[Buick Mackane]

https://www.12voltplanet.co.uk/split-charging.html

[The Collector]

2 batteries, charging current is split into both batteries as per Edd's entry above.

I just used to take a fully-charged, heavy-duty spare car battery out with me when going up on the Lickey Hills for the day. I strapped it in behind the front seats and ran the CB from that.

I never used an amp though so bear in mind that it'll run a battery down a hell of a lot quicker with one on.

[original45]

Spare battery is my way also.used to be big car battery but now I use a 110 ah leisure battery
Works well.
Had mine in a box with handle.

[Cousinjack]

Surely just fitting a new decent battery in the car should cope with it ??

Cb will draw maybe 2 amps on receive, 4 or 5 on transmit, plus the burner will draw a few... any decent battery ought to last a good few hours and still be capable of starting the car surely ??

Save the trouble and expense of split charging systems and more battery’s.

Either that or just park on top of a hill !

[The Collector]

Leaving your sidelights on overnight would often kill an old battery years ago, and that was just 4 x4watt bulbs. The initial cranking power needed is even more nowadays on modern cars. It's surprising how quickly a 30w or 50w amp can drain a battery down if the engine isn't running. A newer, higher-amperage battery won't suffer so badly as an older, budget jobbie.

Although my old Escort had non-halogen headlights and my Amstrad only ran 4 watts, before I started taking a spare car battery with my on radio meets, I always parked with the car facing down the carpark's gentle slope, so I could always bump-start it if I'd say forgotten to turn the interior light off and fhe battery wouldn't turn the engine over (yet another small battery drain, as well as people asking to use the cigarette lighter..it all adds up).

Another option would be to just use the car's battery as normal, but to buy one of these new-fangled battery boosters that have enough stored power to start a car a few times. You can keep it in the boot.

I used to take an older style one to the car boot sales to run 12v stuff off and used it once or twice to help people out that'd run their batteries down by having their doors and boots open and not switching off their interior and hatchback boot lights.

[LeakyFeeder]

I run a Towsure split charger in the boot of my Dub to charge up my caravan leisure battery that powers the 857D... works a treat n there is no chance at all of ever flattening my Dub's battery.. i also often use the spare battery for running the PYE A200 amp on 4m.. lasts ages!