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NOTES ON TEST RESULTS: 

1.

 For any test result other than green #6, disconnect the battery from the electrical system it supports, and reconnect the OptiMate. 

If a better test result is now obtained, this suggests that the power losses are partly due to an electrical problem in the electrical 
system and not in the battery itself. If the poor result persists, you are advised to take the battery to a professional service workshop 
equipped with professional equipment for a more thorough investigation. 

2.

 

If the red LED #8 alone, or the yellow #7 and red LED #8 indicate together (or yellow LED alone for a sealed battery), a significant 

problem exists. The red / red LEDs mean that after being charged the battery’s voltage is not being sustained or that despite 
recovery attempts the battery was irrecoverable. This may be due to a defect in the battery itself, such as a short-circuited cell or 
total sulphation, or, in the case of a battery still connected to the electrical system it supports, the red LED #8 may be signalling a 
loss of current through deteriorated wiring or a degraded switch or contact, or in-circuit current-consuming accessories. A sudden 
load being switched on while the charger is connected can also cause the battery voltage to dip significantly. 

3.

 

GOOD TEST RESULT, but the battery cannot deliver sufficient power:  Permanent damage within the battery may be causing 

excessive self discharge that is not detected within the test period of 12 hours. Disconnect the battery from the OptiMate. After at 
least 48 hours reconnect and observe the TEST result during the PRE-QUALIFICATION TEST.  

AUTOMATIC BATTERY MAINTENANCE: 

The 

MAINTENANCE CHARGE CYCLE

 consists of 30 minute charge periods followed by 

and alternating with a 30 minute ‘rest’ periods, during which there is no charge current. The circuit offers current to the battery 
within a safe 13.6V voltage limit (“float charge”), allowing it to draw whatever small current is necessary to sustain it at full charge 
and compensate for any small electrical loads imposed by connected circuitry, or the natural gradual self-discharge of the battery 
itself.  

The 

BATTERY REFRESH CYCLE

 is performed if the charger detects the battery has lost charge. The program returns to OPTIMIZE 

mode (LED #5) and then proceeds to the voltage retention test and maintenance charge cycle. 

Summary of Contents for TM290

Page 1: ...and pictures are not easy to see At times you will find the overall look of the instructions to be less than professional However we feel it is better to provide what we have rather than provide nothing at all To the best of our knowledge the instructions and application information contained in the instructions is accurate However Dennis Kirk assumes no liability related to any errors that may be...

Page 2: ...K Lees volledig voor gebruik INSTRUÇÕES DE UTILIZAÇÃO IMPORTANTE Ler antes de utilizar ISTRUZIONI PER L USO IMPORTANTE da leggere prima di utilizzare l apparecchio INSTRUKTIONER VIKTIGT läs följande fullständiga instruktioner för användningen innan du använder laddaren Automatic charger for 12 8V LiFePO4 batteries Chargeur automatique pour batteries 12 8V LiFePO4 Cargador automático para baterías ...

Page 3: ...ion 2 5 4 3 OPTIMIZE final 20 equalize CHARGE from 12 8V to 14 3V SAVE from 0 5V to 12 8V LED MODE FLASHING 100 ON LED indications illustration 1 Early warning of battery problems Avertissement anticipé des problèmes de batterie illustration 2 TEST VOLTS 10 12 73 12 99 13 13 13 30 0 5 90 61 90 11 30 VOLTAGE RETENTION TEST TEST DE RÉTENTION DE VOLTAGE 31 60 0 10 ...

Page 4: ... Clean only with slightly moist not wet cloth Do not use solvents 10 WARNING RISK OF EXPLOSION a WORKING IN VICINITY OF A Lithium Iron Phosphate BATTERY IS DANGEROUS BATTERY TEMPERATURE measured at the battery INCREASE DURING NORMAL BATTERY OPERATION AND DURING CHARGING AND THERE IS A RISK OF EXPLOSION IF THE BATTERY IS OVERCHARGED b Lithium Iron Phosphate BATTERIES HAVE A LIMITED SAFE TEMPERATURE...

Page 5: ... if the battery has been inversely connected Set charger switches to off position and or remove AC cord from electrical outlet disconnect the battery clips then reconnect correctly according to the instructions below 15 FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE SHORT CIRCUITING OF THE BATTERY TERMINALS MAY CAUSE BATTERY EXPLOSION TO REDUCE RISK OF SHORT CIRCUITING THE BATTERY a Posit...

Page 6: ...uring the SAVE mode the safe T program limits charge current if the voltage is below 12 8V and the ampmatic program should detect obvious cell damage and will automatically suspend charging but the higher the cell count in parallel the more difficult it is to detect a bad cell e g a 5Ah battery typically has 4 series connected sets of 2 parallel cells 4S2P configuration total 8 cells a 10Ah batter...

Page 7: ...ate low power ECO mode This will occur if there is no battery connected or when a battery is connected and the program finds itself in the voltage retention test mode or the rest periods of Maintenance Charge mode REVERSE POLARITY PROTECTION LED 2 Lights when the battery connections are incorrect The charger is electronically protected so no damage will result and the output will remain disabled u...

Page 8: ...apacity less than 5Ah charge current is automatically adjusted lower to an average equal to battery Ah capacity e g a 2 5Ah 2500mAh battery receive an average of 2 5 Amps NOTE For safety reasons there is an overall charge time limit of 24 hours for SAVE and CHARGE modes OPTIMIZE LED 5 The OPTIMIZE mode starts when the voltage has reached 14 3V for the first time during bulk CHARGE mode Pulsed abso...

Page 9: ...d wiring or a degraded switch or contact or in circuit current consuming accessories A sudden load being switched on while the charger is connected can also cause the battery voltage to dip significantly 3 GOOD TEST RESULT but the battery cannot deliver sufficient power Permanent damage within the battery may be causing excessive self discharge that is not detected within the test period of 12 hou...

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