Jan-10-2018 07:26 PM
Jan-13-2018 04:23 AM
Dakzuki wrote:
"The Best of Both Worlds.". Actually a compromise between both worlds.
Jan-12-2018 01:48 PM
j-d wrote:theoldwizard1 wrote:
True deep cycle 12V batteries are NOT very common. Any battery that advertises a CCA or MCA rating is probably not a TRUE deep cycle battery, but instead a dual purpose "marine" battery.
He's right! The Cranking Amps gives it away. From gOOgle for this battery:
DC27 Deka 12 Volt 650 CCA/ 800 CA 175 Res/Cap Deep Cycle (Gr 27) Deka Marine Master Flooded Batteries. Deep Cycle/Starting – The Best of Both Worlds. High starting and deep cycle capability; Longer cycling than starting battery; Extra reserve power for accessory loads; Rugged vibration-resistant construction.
I don't know if Dual Purpose Batteries are as good for Starting as a pure Starting Battery, but Dual Purpose is NOT as good as Deep Cycle for applications like an RV "House" or a Trolling Motor.
Whether you need two or more batteries, depends on how you use the RV. We get by very well on one true Deep Cycle from Walmart but we don't boondock.
Jan-11-2018 05:11 PM
theoldwizard1 wrote:
True deep cycle 12V batteries are NOT very common. Any battery that advertises a CCA or MCA rating is probably not a TRUE deep cycle battery, but instead a dual purpose "marine" battery.
Jan-11-2018 02:40 PM
Jan-11-2018 02:30 PM
Jan-11-2018 02:12 PM
Cruisineasy wrote:
I have a 2011 31' Jayco Greyhawk DS. The coach battery is failing and needs to be replaced. It currently has a Marine Master DP 27. 650 Cold cranking amps. Since it only has one battery I would like something that will last longer between charges. Would one with 850 Cold cranking amps work better?? Any help on this would be appreciated..
Jan-11-2018 12:35 PM
klutchdust wrote:I "second" this advice if your rig can accommodate two 6V batteries.
Looking at the brochure for your coach I see they refer to "the battery". I would be curious to see the actual battery area and see if there was room to have another batter carrier installed and then throw 2 Trojan 6 volt deep cycles in there. I upgraded to them and the difference is remarkable.
Jan-11-2018 10:19 AM
Dakzuki wrote:Cobra21 wrote:
The larger cold cranking amps may also indicate more amp. hours. I do pay attention to cold cranking amps, as my house battery also starts my generator.
Brian
It is not a direct relationship because CCA indicates surge capability for heavy short loads. A generator starter is far from that.
Jan-11-2018 09:42 AM
Cobra21 wrote:
The larger cold cranking amps may also indicate more amp. hours. I do pay attention to cold cranking amps, as my house battery also starts my generator.
Brian
Jan-11-2018 08:28 AM
Jan-11-2018 08:14 AM
Jan-11-2018 08:03 AM
Jan-11-2018 05:35 AM
Jan-11-2018 04:58 AM