XS Power RSV-S5 12 Volt Titan8 LTO Lithium Battery - 2500 Watts Rms | 20Ah

XS Power RSV-S5 12 Volt Titan8 LTO Lithium Battery - 2500 Watts Rms | 20Ah

Regular price $749.99
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This Titan8 RSV-S5 12 volt Lithium Titanate Oxide (LTO) series uses a very high power lithium cell that is designed for very high burst output (up to 100 times its capacity) as well as very high charge current (30-60 times its capacity). This translates to a single 10Ah module that can support burst current up to 1,000A, and can accept 300A of continuous charge current. 
The RSV-S5 has built in 2/0 bussing that allows up to 4 Positive and 4 Negative hidden direct connections to each module without the need for any external exposed bussing, while still leaving two easily accessible top terminals and four series or parallel expansion terminals to easily build a bank of nearly any configuration from 12V, 24V, 36V, or any configuration imaginable.

Reserve Modules - Designed for Peak Capacity

  • Length – 7.4 in
  • Height – 5 in
  • Width – 4.85 in
  • Weight Lbs. – 8lbs
  • Weight Kgs. – 3.63kgs
  • Voltage – 12V
  • Wattage – 2,500
  • MAX Amps – 1,000
  • Energy Wh – 230
  • CA – 500A
  • CA Pb Eq – 750A
  • Ah – 20
  • Ah Pb Eq – 60


  • Lithium cells are in a state of stress when at 100% SoC and beyond. Continuous charging must be avoided.
  • Unlike most lithium batteries, TITAN8 batteries have a very high recharge rate and can, if a large enough charger is used, be charged to 100% SOC in approximately 5 minutes. Speed of charge will be determined by the output of the charger you are using. If you discharge the battery beyond its recommended minimum voltage, it is not recommended to fast charge the battery. In this situation the best method to charge the battery to keep it from being damaged is to charge it at 1 amp or less for and extended period of time until 100% state of charge is reached.
  • 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 maintaining should be avoided. However, since the chemistry is LTO, they can be used in a system that does constantly charge the battery to maintain a ~90% SOC without damaging the battery.
  • The charging and discharging behavior of a lithium battery should be very predict-able and repeatable. Changes in behavior should be understood and not ignored.
  • For spot checking the batteries, use an accurate digital multimeter to measure the voltage to at least two decimal places. (Analog type meters are not recommended.


  • In general, the lithium battery will greatly 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. It may be necessary to use a larger capacity battery, or and a second battery in parallel. Pulling the battery’s terminal voltage below 9V(12V models), 10.8V(14V models), or 12.6V(16V models) for even the shortest amount of time is prone for a premature failure.
  • Lithium batteries have a relatively flat discharge curve when compared to a lead acid battery. The average terminal voltage throughout discharge will be 12.0V for 12V models, 14.4V for 14V models or 16.8V for 16V models. Unfortunately, this can make judging the state of charge difficult when the battery is nearly empty. Lithium batteries at a low state of charge will show a relatively high voltage. It is important to get familiar with the limits of your battery because over discharge (discharge below 9V for 12V models, 10.8V for 14V models, or 12.6V for 16V models) must be strictly avoided.


  • 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 14.5V or less.
  • 13.0~14.0 is preferred for 12V models, 15.5-17.4 for 14V models and 18.2-20.3- for 16V models.
  • Avoid high temperature. Never operate the battery in environments above 140F or if the battery itself exceeds 140F at any point.
  • 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

PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.

For more information, visit www.P65Warnings.ca.gov

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