Deep Cycle Battery FAQ

13.2v – 13.3v. When at resting voltage.

The Antigravity Battery resting voltage is 13.2 Volts. The battery will read from 14.4 up to 14.7V immediately after fully charging depending on the Charger; then after being removed from the Charger, and as all batteries do, it will settle back down to its “resting” voltage of roughly 13.2V after several hours or a day. The normal voltage Operating Range of the Battery is from ~13 to 11V when fully discharged. But it is always BEST to keep a Battery fully charged as often as possible, meaning it is best not to fully discharge the battery with each use. It is better to keep it in a close to fully charged state when possible.

Please note: At roughly 11v the Antigravity Battery will turn itself off to protect itself, and must be fully recharged by an appropriate charger before the next use. The maximum voltage the battery should be exposed to is 14.6V because above this protections may kick-in and disrupt power supply. On the lower end of the voltage range the battery should be put on a charger if the battery voltage drops below the 12.5V range while sitting, or not in use. The voltage should not be allowed to drop below 11V while at rest. Permanent damage may occur below 11 volts, and though our battery has protections to prevent it from going below 11v, if you leave it at that voltage for longer than a month it can be damaged, and that is not covered under warranty. It is the User’s responsibility to keep the battery maintained.

The Antigravity V1 and V2 Deep Cycle Batteries will have about a 60% or slightly higher state of charge when shipped. We recommend fully charging the battery before use. It is very important that the PROPER Charger be used for our Lithium Iron Phosphate Deep Cycle Batteries to be charged most efficiently. We suggest a Lithium Iron Phosphate specific Charger that can charge in the 10Amps to 60 Amp range be used for our Batteries. A lower-Amp Charger will charge the battery slower.

The fact is our Battery can also be used with Most RV Chargers made for AGM Lead/Acid Batteries, but the fastest and best charging may not be achieved using a non-specific Lithium Iron Phosphate Charger. Please review your current charging system in your use and call the manufacturer of the Charger to verify its compatibility. Antigravity Batteries will not be responsible for any misuse or the use of wrong charger for our Lithium Deep Cycle Batteries. Please see our User’s Manual for more specifics on Charging your Antigravity Deep Cycle Battery. Available on our Downloads page

Our lithium batteries will operate perfectly fine with most standard Charging Systems for an AGM Battery in RVs, but the fact remains that this must be verified with the manufacturer of the Charger. There are many Chargers for Deep Cycle Batteries on the market and Antigravity Batteries has not tested all of them. So please consult that the model you have is compatible to charge our Lithium Battery. Do not charge our Batteries above 14.5V or exceeding 70 Amps. Please see your Users Manual for the Battery.

NO! This can be dangerous because there are different Chemistries of Lithium Batteries. You should ONLY use a Lifepo4 Lithium-Ion Charger designed for 12.8v or 13.2v Deep Cycle Lithium Batteries. You may also use some Motorsport/Powersports Chargers specifically for Lithium Iron Phosphate batteries, but if they only offer 4 amps to 10 Amps of Charging they will be slow to charge a 100 Amp-Hour Lithium Deep Cycle Battery.

Chargers and Maintainers

The maximum charging rate for our 100Amp-Hour Batteries is 70 Amps. Please see the Users Manual.

Currently both the V1 and V2 Antigravity Deep Cycle Batteries are in a Group 31 format only. But this fits most all RVs and other applications. Please check the measurements of your proposed battery location and verify fitment.

The V1 battery is 12.75x7x7.5 inches, and our V2 battery is 13x7x8.75 inches.

Overall the V1 model has more features and is capable of handling more Constant Current and Pulse Current Discharges than the V2 model. It offers a lower profile design and a Terminal design that allows for 2 connections per terminal while the V2 only has one connection point. The V1 also has a Bluetooth App with a few more features and a more elaborate ability for a communications system using the RS485 protocol. The V1 Battery also exceeds the Performance of most all other 100Amp-Hour Deep Cycle Batteries on the market and is a more expensive option. But both Batteries use high quality UL Listed Cells, and the V2 model competes in price and performance with the top brands currently on the market. Please see our video for more details.

We use Lithium Iron Phosphate called LifePo4. It charges and works perfectly fine as a Direct Replacement for Lead/Acid 100Amp Hour Batteries but you should check your charging system to ensure complete compatibility.

We use what is called a prismatic/pouch cell. We do not use cylindric cells. It is a UL 1642 Listed Cell and also EIC Certified 62619, and UN 38.3 Tested and Certified.

There are many protections built into our Antigravity Deep Cycle Batteries. Those protections include the following: Overcharge Protection, Over-Discharge protection, Over-Voltage Protection, Under Voltage protection, Short Circuit Protections, Thermal Protections to prevent over-heating and Charging if battery is too cold/hot. Additionally the Batteries offer Cell Balancing to keep all the Cells in line with each other. This offers the most protection and safety possible.

This battery should last about 8-12 years, but this will be determined ultimately by how it is used and treated by the consumer. Using a Lithium Battery to its full depth of discharge, for example taking the battery down close to the 11v range, often will result in less lifespan than if you were to only discharge the battery into for example a 12.5v range then recharge. So it is always best to charge the Lithium Battery more often and not go as deep into the state of charge. But regardless even with a deep discharge often occurring, our Lithium Battery will last about 10 times longer than lead acid in its cycles available. Another usage example is the amount of time exposed to extreme heat/cold which can also affect the lifespan of a battery.

Over-Discharge or Over-Charge are the most common causes of damage to lithium batteries.

1. Discharging them below 11 volts. Though our battery has protections against this it is still possible if you over-discharge the battery then allow it to sit for a month or more below this 11v range. The Customer must maintain the battery.

2. Using the wrong Charger for the Battery. Please contact the Manufacturer of your charger you plan on using.

3. Physical Abuse to the Battery: dropping/physical abuse, or incorrect installation. Constantly exceeding protection limits on the batteries.

4. Short Circuiting the Battery. Our Batteries offer short-circuit protections, but it is NOT intended to allow for continuous short-circuits. It is just to provide protection to the User, and System, but the Battery itself could be damaged by Short Circuiting, and this is not covered by Warranty.

If any issues arise with your battery please contact us. We would be glad to help and assist. Call 310 527 2330, or Email info@antigravitybatteries.com