DOWN4SOUND | D4S LTO 6.0 - 12V Lithium Battery ( 3000 - 5000W )

MSRP: $599.99
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d4s-lto-6.0
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D4S 12 Volt  LITHIUM BATTERY DETAILS ( PLEASE READ THIS ENTIRE DESCRIPTION FROM START TO FINISH FOR BEST RESULTS WITH THIS BATTERY )

You’re looking at the first ever DOWN4SOUND lithium battery! We are super excited to bring the smallest, yet most powerful lithium battery to date, in car audio! Pairing a super small footprint with tons of output makes it a win-win! For all features and specifications on why the Down4Sound LTO-6.0 should be your ONLY CHOICE for your next lithium purchase, please read more about this GAME CHANGER below.

Model - LTO-6.0

 

Designed to work directly inline with stock charging voltages (No voltage-boosting needed to achieve optimal results).

Can be paired with regular 12v / non-lithium batteries with no issues.

14.8v Maximum Charge voltage (DO NOT EXCEED THIS OR BATTERY DAMAGE / FAILURE COULD OCCUR).

DO NOT MOUNT UNDER THE HOOD UNDER ANY CIRCUMSTANCES AS SEVERE DAMAGE / FAILURE COULD OCCUR.

Wattage Range - 3000-5000W (Depends largely on alternator input).

Example -
120-160A alternator - 3000w rating
240-270A alternator - 4000w rating
320-370A alternator - 5000w rating

CRAZY RECHARGE RATE (can take a High-Output alternator by itself with NO ISSUES).

6 Ah
70 Wh

Battery Technology - LTO (Lithium Titanate Oxide).
*We feel this is the safest lithium technology.

Built-in Balancing (No other parts or assembly needed).

Comes with conventional M6 terminals for ease of installation.

DO NOT OVER-TIGHTEN BATTERY TERMINALS!
Whether using the automotive post adapters, bolts or screws, the tightening torque should never exceed
6 ft-lbs MAX on any Down4Sound battery!
 
USE TERMINAL BLOCKS WHEN USING IN HIGH CURRENT APPLICATION
When connecting to this battery a solid, low resistance connection is suggested. Because of the high
output of this battery, excessive heat can develop on and around the terminals that can cause damage
to the battery housing. Do not apply an excessive load if using steel posts or other high resistance
materials to connect to this battery. 1/O gauge cable or larger is recommended for all connections


Lightweight & compact design

Weight - 4 pounds! YES, YOU READ THAT RIGHT! FOUR POUNDS!
Measurements
Width - 7”
Height - 4.75”
Depth - 3.5”

PROPER CHARGING IS CRUCIAL!
 
Charge before initial use, be sure to read the instruction sheet for full instructions proper charging is
crucial to the life of your Down4Sound battery. It is very important that the temperature of the battery
remains cool with respect to the charge voltage.
 
CHARGING
Typically the battery will ship at less than 100% State of Charge (SOC.) Please charge your new battery immediately upon receipt. For charging your 12V Lithium battery we recommend a battery charger specifically designed for lithium batteries Lithium batteries are by their very nature voltage sensitive. Further, the lithium battery is the most vulnerable to damage while charging. It is important that the charging process of the battery be fully understood and carefully controlled. Do not use a battery charger designed for “Flooded” or “Maintenance Free” batteries. Do not use a battery charger with a “de-sulfa-tion mode” or “float mode”. USING THIS STYLE OF CHARGER WILL CAUSE DAMAGE / FAILURE AND VOID WARRANTY. Remove the battery charger once the battery is full meaning 100% State of Charge. Unlike lead acid batteries, over charging lithium batteries does not help them nor cause them to store more power. Instead it harms them and should be strictly avoided. Lithium cells are in a state of stress when at 100% SoC and beyond. Continuous charging must be avoided. Lithium batteries do not have a “memory effect” therefore they do not have to be empty to benefit from re-charging. Simply recharge them when convenient and avoid overcharging. In general,float charging or battery maintain-ing should be avoided. Can be charged at a rate of 60A continuous, 400A 10 sec
If you want to charge this battery with a battery charger, it MUST BE A LITHIUM BATTERY CHARGER such as https://www.down4soundshop.com/down4sound-d4s-chg-15a-12v-lithium-charger/

(Using a regular battery charger can damage the battery / void the warranty).

STATE OF CHARGE

100% - 13.6V

96% - 13.2V

77% - 12.8V

54% - 12.4V

25% - 12V

10% - 11.6V 

8% - 11.2V

5% - 10.8V

1% - 10.4V

0% - 10V


Warranty: 1 year from date of purchase against manufacture defects.

TIPS LIST
Read the battery label and do not exceed any of the ratings. Do not over discharge this battery. Terminal
voltage should at all times remain above 10V. Disconnect when not in use. Make sure you have the
correct charger. Lithium batteries are voltage sensitive so pay close attention to the max voltage rating.
Do not use an undersized battery for the job esp. in applications under 32F. If the terminal voltage
under load drops below 10V the battery is too small for the job. Stop and resolve this issue before
continuing. Pulse loads by their very nature are a pseudo short circuit of the battery. This is fundamentally
destructive to the battery so each battery’s State of Health should be regularly checked. 
 
INSTALLATION
You may mount the lithium battery in any direction as long as it is secured from short circuits and/or movement. One word of caution though. This battery is very light and therefore it does not require a great deal of force to hold it. Do not crush the battery with battery retention systems. The threads are M6-1.0. Optional mounting kits and terminals are available. Observe the maximum torque ratings on the battery label Be extremely careful when making connections. Remember there is no low voltage disconnect, reverse polarity, or short circuit protection on the main terminals of this battery. Further the power output of a lithium battery is four times that of typical lead acid batteries. Short circuits will flow huge amounts of current instantly with the ability to melt metal.Do not expose to temperatures above 60oC (140oF). Avoid mounting this battery in the engine compartment if at all possible. Elevated temperatures accelerate the aging process of most battery types and lithium batteries are especially sensitive to high temperatures. Open circuit voltage should be above 12V,  when fully charged after resting for 8 hours. If it is less than this after resting for 8 hours, the battery should be taken out of service and must be checked for capacity, cell balance, and State of Health before resuming operation.
 
USAGE
In general the lithium battery will outperform the lead acid battery it is replacing. If it does not, chances are you have a battery that is too small for the job. Stop now, take it out and return it for the correctly sized model. In general pulling the battery’s terminal voltage below 10V  for even the shortest amount of time is asking for a premature failure. This must be avoided. Lithium batteries have a relatively flat discharge curve when compared to a lead acid battery. The good news is that the average terminal voltage throughout discharge will be 12.5V for 12V models. Unfortunately this can make judging the state of charge difficult when the battery is near empty. Lithium batteries at a low state of charge will still show a relatively high voltage. It is important to get to know the limits of your battery because over discharge below 10V  must be strictly avoided.
 
WARNINGS
To reduce the risk of fire or personal injury including burns: - Do not over charge the battery (meaning exceed the maximum voltage OR amperage and remove the    charger once the battery is at 100% SOC.).
- Do not short circuit the terminals.
- Use with alternators requires that the charging voltage be limited to 14.4V or less. 13.8~14.0 is    preferred for 12V models.
- Do not charge this battery if the terminal voltage is below 10V.
- Contact Down4Sound for assistance before proceeding.
- Avoid high temperature. Never operate the battery in environments above 130oF or if the battery itself    exceeds 130oF at any point.
- Lithium batteries contain flammable gases. Have a plan in place to respond to possible fire. Installation    inside of metal enclosures is recommended in the event of fire.
- Disconnect the battery in total before welding anywhere on the vehicle.
Do not submerse in water. This battery is not waterproof.
- Do not crush, puncture, or dispose in fire or water.
- Do not attempt to open, disassemble, or service the battery pack
 

TESTING

LTO 6.0 Standalone Testing Notes:  

SPL TESTING SECTION. BURPS. STANDALONE. (Wattage verified with termlab)

 

1,000W. 12.93 to 12.85. Immediate recovery. 

 

2,000W. 12.93 to 12.4. 

 

5,000W. 12.93 to 12.05. 

 

8,000w. 12.91 to 11.12. 

 

8,300w. 14.1 to 11.4. 

 

After the 8,300w burp, battery recovered to 12.8. A 25a lithium charger was applied. 1m 4s later, battery was floating at 14.5. 

 

Battery stud temp raised 4*, and casing raised 2-3*. 

 

****ENGINE TURNOVER TESTING SECTION***

 

4 CYLINDER TURBO TEST

*first crank* 12.8 to 11.96. 

 

Next test:

Vehicle accessory mode for 5 minutes, then start: 

5 minutes with head lights on.  Engine still started fine. Dropped to 10.9. Quickly back up on a stock charge system. 

 

Next test:

Brutal engine cranking (simulating super cold temps where engine needs numerous cranks to start). 

3 engine cranks in a row. 5 seconds on then turn the engine off. 5 seconds later, start again. Starting at 12.9. Dropped to 11.4 on the last of 3 starts. Same test with an AGM (D5100) Dropped to 10.9. 

 

NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. 

—————————————————————

6 CYLINDER TEST

 

12.9 to 11.77. Battery was above 14v with stock charging in 20 seconds. No lag noticed or difficulty starting. 

 

3 start roulette placed battery in upper 10’s. Same test as performed above. 

 

NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. 

 

—————————————————————

 

8 CYLINDER TEST (V8 mustang. Naturally aspirated) 

 

12.9 to 11.4. Battery was above 14v with stock charging in 45 seconds. No lag noticed or difficulty starting. 

 

3 start roulette battery seen 10.9 at the last run. 

 

NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. 

 

—————————————————————

DIESEL ENGINE (POWERSTROKE)

 

 

12.9 to 10.9. Battery was above 14v with stock charging in 1 minute. No lag noticed or difficulty starting. 

 

Ignition problems in vehicle prevented 3 start roulette. 

 

NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. 

—————————————————————

32 Reviews Hide Reviews Show Reviews

  • 5
    Lithium battery

    Posted by Robert Phillips on Sep 26th 2021

    Was having serious electrical issues with my car after installing about 5,000 watt of stereo equipment,( power steering locking up at idle , headlights dimming at night , etc ) added a Mechman alternator and added one of these LTO 6.0 and I am seriously impressed, not one electrical issue ! Will be ordering more for future projects in the near future. Oh and by the way , free shipping from Vegas to Texas was at lighting speed !

  • 5
    the little engine that could

    Posted by Matthew gould on Aug 24th 2021

    This is my second d4sound lto battery to accompany my d4sound powerpack . I bought a high output alternator but no one will install since its a Volkswagen so I needed that extra power to compensate and I knew how underrated the d4sound lto was but I owned one already. Most people think its only 6ah not worth the money but so far everything d4sound and jp put out needs to meet certain criteria or he wouldn't put his initial on it and so far voltage never drops worth the money buy it and enjoy the potential of your music especially if you have a foreign car no one wants to work on.

  • 5
    Fast shipping and customer is amazing

    Posted by Rafael Diaz on Jun 28th 2021

    Fast shipping and amazing service, any and all questions are answer in a timely manner definitely will continue to do business with d4s

  • 5
    LTO 6.0 Blows my mind

    Posted by Sebastian Phelps on Jun 10th 2021

    These are amazing, I bought 2 and currently have them installed with just my one Skar rp2500.1 and my oh my. I only have a 250 amp alt but I have zero voltage loss, even when stopped now banging away. Can't wait to install my second rp2500.1. Don't hesitate, these are worth it.

  • 5
    D4S LTO 6.0 Lithium Battery

    Posted by Bryan Jackson on Jun 4th 2021

    Excellent customer service and very quick shipping especially for a holiday weekend when I ordered. The only thing was that my D4S shirt was not sent but that was a free perk so that doesn't affect my opinion of D4S. I will keep using D4S

  • 5
    Amazing Performance

    Posted by Jonathan Blann on May 15th 2021

    What is voltage drop? this thing is amazing in its power capabilities! With a Mechman 400 it feeds an SFB8000D no problem and even on the most demanding songs may only drop .3-.5 volts. Amazing power in a small package!

  • 5
    6.0 LTO

    Posted by Bryan Piper on May 14th 2021

    Thought I was going to need 2 for my deaf bonce 4k, ended up ordering one just to see how it does and it has exceeded my expectations by far!!!! Holds mid 13s full tilt at an idle!!!!! Fantastic battery and buy it now!!!

  • 4
    LTO 6.0

    Posted by Jacob webster on Apr 10th 2021

    Used this in conjunction to two agm batteries and a lead acid one and seemed to do the trick for voltage drop on a psi 5k amp for 6 skar 12s. Sometimes acts like a super capacitor, but for the most part no voltage drop where voltage drop occured previously.

  • 5
    D4s lipo

    Posted by tim miller on Mar 31st 2021

    First timer in lithium world. I now have 2 and about to order 3rd. So yeah they a magic in a little plastic case. Great battery d4s