Good Sam Club Open Roads Forum: Can you use all terminals in parallel connection?


Open Roads Forum	Already a member? Login here. If not, Register Today! \| Help

Newest | Active | Popular | RVing FAQ

Forum Rules | Forum Posting Help and Support | Contact

Open Roads Forum > Tech Issues

Reply to Topic | Subscribe | Print Topic | Post New Topic |

jaycocreek

Idaho

Senior Member

Joined: 12/28/2013

View Profile

Offline

Posted: 07/17/22 08:08am

Link | Quote | Print | Notify Moderator

Not much of an electrical guy myself so I thought I would ask if you can use all the terminals in a parallel connected battery..Ofcourse one positive off of one battery and one negative off the other goes to the coach or load but can the other two be used for say charging?

As shown in the picture,the two center positive and negative terminals..Can these be used for charging or say accessories?

[image]

Lance 9.6
400 watts solar mounted/200 watts portable
500ah Lifep04

wa8yxm

Davison Michigan (East of Flint)

Senior Member

Joined: 07/04/2006

View Profile

Offline

Posted: 07/17/22 08:11am

Link | Quote | Print | Notify Moderator

Short answer is you may yes.

Now on very heavy amp devices.. Like a 2000 watt inverter.. Wire as shown above.. Even a large converter (say 50 amps or more) likewise.

But for most loads.. like phone chargers which typically draw in the single amps range.. No problem at all.

Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times

2oldman

Senior Member

Joined: 04/15/2001

View Profile

Offline

Posted: 07/17/22 08:12am

Link | Quote | Print | Notify Moderator

yes

jaycocreek

Idaho

Senior Member

Joined: 12/28/2013

View Profile

Offline

Posted: 07/17/22 08:18am

Link | Quote | Print | Notify Moderator

I have it wired as shown above for all loads as of now,I'm wanting to just charge with alligator clips or ad another accessory without using the already almost full, positive and negative post..I guess a bus bar is in order...

Thanks

joebedford

Home for the summer.

Senior Member

Joined: 09/03/2003

View Profile

Posted: 07/17/22 09:35am

Link | Quote | Print | Notify Moderator

This is what I have for multiple loads off the battery. The bus bar is full now - last slot used by breaker for inverter.

[image]

time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile

Good Sam RV Club Member

Posted: 07/17/22 09:37am

Link | Quote | Print | Notify Moderator

Balanced connections are even more important for these batteries with very low internal resistance and flat voltage discharge curve.
Get the bus and clean it up.

2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

bgum

South Louisiana

Senior Member

Joined: 02/22/2006

View Profile

Offline

Posted: 07/17/22 09:43am

Link | Quote | Print | Notify Moderator

The experts say you can but why not get a larger bus bar?

Lwiddis

Southern California :(

Senior Member

Joined: 08/12/2016

View Profile

Good Sam RV Club Member

Offline

Posted: 07/17/22 10:41am

Link | Quote | Print | Notify Moderator

I agree with bgum. Larger bus bar.

Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad

pianotuna

Regina, SK, Canada

Senior Member

Joined: 12/18/2004

View Profile

Offline

Posted: 07/17/22 10:48am

Link | Quote | Print | Notify Moderator

No. Balance the wiring.

Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.