This charger is over 6X FASTER than the Optimate TM-471.

The most cost-effective solution for long-term maintenance of 12V lithium (lifepo4) batteries in any vehicle stored in or outdoors.

Features:

• Fully Automatic “Plug and Play” - Simply connect to the battery and plug it into the nearest power socket, the rest is fully automatic.
• Automatically brings the battery to full charge with 5 Amp constant current and then switches to the unique Optimate battery-saving maintenance charge mode to keep the battery 100% ready and at the same time provides power to the onboard computer, display or antitheft alarms.
• Recommended for Lifepo4 lithium battery brands.
• Weatherproof and lightweight weighs in at 1 lb.
• Includes all safety features such as reverse polarity protection, no spark connection; approved to UL and CSA safety standards for automatic battery chargers.
• We also offer a less expensive .8 Amp charging unit (Model TM-471).  
• 3 year limited warranty.

Manufacturer Info: 

• Pre-qualification test: OptiMate Lithium displays the condition of the battery before charging and measures environment temperature. The ampmatic™ charge program is selected according to temperature and battery condition.
• Low Volts recovery: The safeTº protection mode controls charging during this sensitive battery SAVE stage, to ensure that an over discharged battery will be correctly and safely recovered. Tests are conducted through-out the SAVE program to determine if the battery has successfully recovered and can advance to BULK CHARGE.
• Bulk charge: the ampmatic™ processor actively adjusts charge current to match battery capacity and condition, achieving a complete charge in the shortest time. Progress is tracked against the ideal charge curve for LiFePO4 batteries.
• Short-circuited / dead cell check: Charge progress is tracked against the ideal LiFePO4 charge curve, internal damage will be detected and unnecessary charging is prevented of a battery that cannot be recovered.
• Absorption and equalization: for 10 minutes the current is delivered in pulses with voltage controlled between 14,0 and 14,3V, aiding cell voltage equalization and improving the battery's overall power delivery.
• Charge verification: the voltage is limited at 13,6V while the ampmatic™ processor monitors the current absorbed by the battery. If this reveals a less than optimal charge, the program reverts to absorption for a further 10 minutes.
• Voltage retention test: is conducted for 30 minutes during which no charge current is delivered, with 5 possible test results indicating the battery's general state of health. A green (voltage > 12,7V) result extends the test up to 12 hours, to check for excessive self-discharge or higher than expected power loss through the vehicle’s electrical system.
• Charge maintenance: The 12 hour MAINTENANCE CHARGE CYCLE consists of 30 minute float charge periods at a voltage of 13,6V followed by and alternating with a 30 minute ‘rest’ (no charge current) periods. During the float charge period current is delivered only if the battery has lost charge due to connected vehicle circuitry. A refresh cycle may be performed if the charge level has dropped significantly. The voltage retention test and maintenance charge cycle will repeat 24 hours after the start of the very first test and continue to repeat for as long as the charger remains connected. The alternating charge and ‘rest’ maintenance program protects the battery against over discharge by connected vehicle circuitry, making it ideal for indefinite and 100% safe long term maintenance charging.

Dimensions:

“Body” of Charger

• Length             =          8 3/4"              
• Width              =          2 5/8"              
• Height             =          3 1/2"
• Weight             =          1 lb 12 Ounces

Included:

• (1) Fully automatic battery charger.
• (1) Direct connect fused harness / permanent ringlet connector with weatherproof cap.
• (1) Set of positive and negative battery clips.

***THIS CHARGER IS ALSO CAPABLE OF RECOVERING LOW VOLTAGE LITHIUM ION BATTERIES THAT HAVE NOT BEEN DAMAGED BEYOND REPAIR***  
 
We have recovered batteries with a charge as low as 8.6 volts!!  ***Results WILL vary*** 
 
A HIGH amp FULLY AUTOMATIC charger/maintainer for ALL 12 volt lithium batteries.