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EXTRA BATTERY   Printable Version Hummer >> Hummer Lineup >> Hummer H2 >> EXTRA BATTERY Page: [1] 2   next >   >> Login Message << Older Topic   Newer Topic >> EXTRA BATTERY - 12/11/2007 8:58:15 AM    kdec19   Posts: 28 Joined: 12/10/2007 Status: offline Has anyone added a second battery to their hummer h2.  If so where and how much did it set you back!! I figure alittle winching in the dark and one battery will be a little weak!!   even if the engine is running!!!   any good ideas.   Trying to get set up to go in the Maine woods!!! Post #: 1 RE: EXTRA BATTERY - 12/12/2007 7:24:21 PM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline i have added 2in the back and 1 under the hood all 3 optima yello tops there bout 200 each and i put the to in the back above the wheel well on the in sid of the truck (in reply to kdec19) Post #: 2 RE: EXTRA BATTERY - 12/16/2007 8:29:43 PM    Calgary   Posts: 42 Joined: 1/22/2007 Status: offline Two red top Ultima batteries will fit (snugly) in the location of the original battery. Take out the battery tray and use a dremmel to take the edge of the tray off so that the tray is no just a flat pan. Put the first battery in lengthwise so that the negative terminal on top is towards the front of the truck and so that it fits tight against the fender. Put the next battery in next to it in exactly the same fashion. Hook original battery cables to the side posts of the battery that is closest to the engine. The negative cable should fit but you may need to take the cover off of the fuse box to get the positive cable to reach. Once they are hooked up, use about 6 inch cables to connect the top posts of the batteries in PARALLEL! Hook the positive to the positive and the negative to the negative. The two cables will be parallel to each other. The two batteries fit in there so well that I didn't even need any way to hold them down. They wedge in there perfectly!! Good Luck (in reply to kouvelis888) Post #: 3 RE: EXTRA BATTERY - 12/17/2007 8:16:41 AM    HumminNBoatin Posts: 468 Joined: 9/9/2007 Status: offline Calgary, Do you have pix of your install? _____________________________ Here's to the Stars Partying like Rock Stars Looking like movie Stars and Getting Hummers like Porn Stars!! Official THCI Member ...Currently Obtaining HOPE Cert. (in reply to Calgary) Post #: 4 RE: EXTRA BATTERY - 12/18/2007 8:59:20 PM    dizzy Posts: 271 Joined: 9/26/2006 Status: offline What,s the reason for running two batteries? Would the voltage be the same? (in reply to HumminNBoatin) Post #: 5 RE: EXTRA BATTERY - 12/27/2007 6:14:52 PM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline got any pic of the instal and can i do the same thing with 2 yellow tops (in reply to dizzy) Post #: 6 RE: EXTRA BATTERY - 12/28/2007 5:32:16 AM    noclrnce   Posts: 17 Joined: 10/7/2007 Status: offline Ive been eye ballin this :http://www.wranglernw.com/pc-6377-846-dual-battery-tray-kit-for-hummer-h2-hut-2000-2006.aspx (in reply to kouvelis888) Post #: 7 RE: EXTRA BATTERY - 12/29/2007 7:11:24 PM    Calgary   Posts: 42 Joined: 1/22/2007 Status: offline Sorry, I have been away on holidays. I'll take a picture when I get home on Wednesday and post it. Sorry it took so long. g (in reply to noclrnce) Post #: 8 RE: EXTRA BATTERY - 1/1/2008 1:00:21 PM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline dont spend 500$ on that dumb ass try. ill have pic up in the next day or to cuz its snowing alot out here in chicago.  (in reply to Calgary) Post #: 9 RE: EXTRA BATTERY - 1/10/2008 10:52:59 PM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline here is the pic of the battery instal Attachment (2) (in reply to kouvelis888) Post #: 10 RE: EXTRA BATTERY - 1/12/2008 9:26:01 AM    noclrnce   Posts: 17 Joined: 10/7/2007 Status: offline Got pics of the actual tray? (in reply to kouvelis888) Post #: 11 RE: EXTRA BATTERY - 1/12/2008 9:29:05 AM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline no i dont but all it is. its the tray that came with the h2 you just take it out and the the lip off all the way around. it taks bout 5 min to do it. (in reply to noclrnce) Post #: 12 RE: EXTRA BATTERY - 1/12/2008 1:35:24 PM    GorillaH2 Posts: 1413 Joined: 7/30/2007 Status: offline Do you have the SUV? If you have the SUT I put 6 under the truck bed to power the 10,000 watts amps (in reply to kouvelis888) Post #: 13 RE: EXTRA BATTERY - 1/12/2008 2:00:27 PM    kouvelis888   Posts: 28 Joined: 12/9/2007 Status: offline just the h2 not the truck. but you have any pics of the 6 battery you are talking bout i wood like to see that. (in reply to GorillaH2) Post #: 14 RE: EXTRA BATTERY - 1/30/2008 12:09:10 PM    flrtrader   Posts: 37 Joined: 1/22/2008 Status: offline You say you put the side post facing the engine? Then just hooked Pos to Pos and Neg to neg? Charges fine without to much draw on the Alt.? (in reply to kouvelis888) Post #: 15 Login OR Register now to post a reply to this forum topic. 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