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How many accessories can I add until my battery explodes?

Discussion in '3rd Gen. Tacomas (2016+)' started by wildalaska, Dec 9, 2018.

  1. Dec 9, 2018 at 5:18 PM
    #1
    wildalaska

    wildalaska [OP] Well-Known Member

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    Conor
    Longmont, Colorado
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    2018 Cement TRD Off-Road DCLB
    Prinsu Roof rack, CaliRaised LED Ditch lights and Light bar.
    Hello all,

    I recently installed some Cali Raised LED Ditch lights and they're great. According the the website, they draw 2 Amps.

    I also recently purchased a Prinsu CabRack, and I purchased it with a 40" light bar cut out, so I do plan to install a 40" light bar that will also most likely be a Cali Raised LED light bar, or something cheaper as a filler for the time being. The website for the Cali Raised 42" light bar states 200 Watts.

    No clue on converting watts to amps, or the voltage of either products.

    Both of those products are/will be wired with the Cali Raised Wiring Harness that includes hook ups to the battery and fuse relay boxes.

    Those are the only dedicated electrical accessories I plan to install for the time being. The only other accessory I plan to get that will directly involve battery use is a Viair 88P portable air compressor, that will only be hooked up to the battery as needed, and the vehicle will be running during use.

    Can my stock 2018 Tacoma battery handle all this? At what point do I need to upgrade... stuff? I've seen 'Big 3' upgrades, dual batteries, dedicated fuse boxes, etc. on here and I have no clue what any of that means, even after reading it all.
     
  2. Dec 9, 2018 at 5:30 PM
    #2
    Hstone556

    Hstone556 Ain’ters gonna ain’t

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    Hunter
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    Raceline 17" Gauge's 37x12.50 Toyo's RT, Carli King 2.5s
    You’ll be fine, I’m running 4 Squadron Sports, a 15” OnX6, a pair of S2 floods out back and a 38” fleabay bar up top on my rack. Still have two more pods to wire up, and I’ll be installing a Viair OBA kit here soon. I’m still on the 3 year old factory battery. Will upgrade when it dies. All my lights run off relays, and I’ve had them all on for a while more than once.
     
    Shortbus47XYY likes this.
  3. Dec 9, 2018 at 8:52 PM
    #3
    jdmstuff

    jdmstuff Well-Known Member

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    Torrance, CA and Las Vegas, NV
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    '18 TRD OR DCSB AT, '08 TRD Sport DCSB AT, '03 TRD 3.4l 4x4 MT Supercharged
    Your alternator runs everything when the engine is running. The main function of the battery is for starting the truck.
     
  4. Dec 9, 2018 at 8:57 PM
    #4
    Leman

    Leman BROverlander

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    Watts=Amps*Voltage
     
  5. Dec 9, 2018 at 10:09 PM
    #5
    JoeCOVA

    JoeCOVA IG @MightyJoeFlannel

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    Or

    Watts/volts= amp

    OP,

    The alternator should be able to handle it. I believe the tow packages came with a better alternator but don’t quote me.

    Fuse boxes and the like help clean up the wiring so you don’t have a web of wires all over the battery. To help clean up wiring you can look into a power tray.
     
  6. Dec 9, 2018 at 11:26 PM
    #6
    4x4Runner

    4x4Runner Now with more Oi Vey! Moderator

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    Drunken Sailor
    Not north, not south, not west, mostly east
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    nuttin fancy
    Remeber PIE.

    Power (P)=Current (I) x Voltage (E)

    Or power/current equals voltage.
    Or Power/voltage equals current.
     
    58electricman, JoeCOVA and SR-71A like this.
  7. Dec 9, 2018 at 11:50 PM
    #7
    m603holden

    m603holden @Koditten Pirate Radio member #063

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    Marteeen
    New England
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    Lots of sail boat fuel
    Food for thought. If you're not using on board air for lockers , it's nice to have a portable compressor for airing up.
     
  8. Dec 10, 2018 at 4:29 AM
    #8
    eMKay

    eMKay Well-Known Member

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    Buffalo, NY
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    Pro Grill, roof rack, HID headlights, yellow fogs, LED high beams, trailer brake controller
    It’s about 14 amps with the engine running, about the same as running halogen low beams and fogs at the same time. It’s a lot for LEDs. Are you trying to light up a new moon? Lol, I can’t imagine how bright that would be
     
  9. Dec 10, 2018 at 6:19 AM
    #9
    Broccoli

    Broccoli Well-Known Member

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    This is no problem, i have a spod/secondary fuse box hooked to my truck running 6 led pod lights 20” lightbar ,52” lightbar and a winch. No issues yet. Just need to upgrade my battery due to when running the winch all the lights etc flicker drawing too much power.
     
  10. Dec 10, 2018 at 6:25 AM
    #10
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    Largo Florida
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    As others have pointed out V * A = W

    So with simple algebra you can always calculate one unknown easily.

    And if connected directly to your vehicle system (not through an AC inverter), V will always = 12 (DC)

    So if you know either A or W, now you can calculate the other.
     
  11. Dec 10, 2018 at 7:35 AM
    #11
    tallpilot

    tallpilot Well-Known Member

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    Mobtown sliders, RCI skids, Bilstein 6112/5160/Dakar, DuroBumps
    As others have stated it is the alternator amperage capacity that matters not the battery size.

    If the alternator is running full field all the time it will wear out the bearings faster. Get a multimeter and check your battery voltage with the engine running and all of your loads on. If it drops below 12.6 you are draining your battery. Note that the alternator can't put out full load at idle so try it again at 2,000 rpm.

    All 3rd gens with an automatic have 130 amp alternators. If you have a MT then only the towing package trucks have 130.
     
  12. Dec 10, 2018 at 7:57 AM
    #12
    Woodrow F Call

    Woodrow F Call Kindling crackles and the smoke curls up...

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    16 DCSB SR5 4X4 "ikea furniture haulers" edition.
    Besides what everyone else has said, if you are talking the sock battery, that's one weak point in the truck. Mine was replaced under warranty and the one I have now has corrosion everywhere. I'm probably going to replace it with something else.
     

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