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BatteryMINDer

® 

   

Models 36271 & 48021

Rev. D-120913 

 

 

Page 17 

P/N VDC36271/48021-MNL

leaving lights on or cranking an engine excessively. Allow such a battery 
to “Rest” for several hours (overnight if possible) before determining if it 
is defective. Be very suspicious of any 

36V

 / 

48V

 battery that does not 

have at least 

33V

 / 

44 Volts

 (OCV) before it is recharged. It may well be 

seriously damaged and unsafe for any type of use or recharge. The unit’s 
Battery Condition Indication LED will help you determine if battery is less 
than 

33 Volts

 / 

44 Volts

 (

YELLOW

) or greater than 

33 Volts

 / 

44 Volts

 

(

GREEN

)

11.  After battery has been fully charged, the 

GREEN

 Charge-Float LED 

Indicator will begin blinking.  It will continue to blink indefinitely, unless 
unit is disconnected from battery.  Should battery be unable to be fully 
charged, the LED will not blink and the 

RED

 Error LED will blink.  Battery 

may not be able to be fully charged, may be too large or too deeply 
discharged to be fully charged in the normal time allowed by charger.  
If you are certain battery is not defective, having read and understood 
completely all of the above concerns and conditions, proceed to reboot 

unit by unplugging from A.C. electrical outlet, disconnect from battery so 

there will be no electrical power going to the unit from either direction, 

wait 10 seconds, connect to battery only.  Make battery selection if 

needed by pushing 

SELECT BATTERY TYPE

 button once or twice, 

then plug into A.C. outlet.  This allows charger to begin charging battery 
again.  If battery is not defective it should be able to be fully charged after 
being restarted.  After sufficient time has lapsed the 

GREEN

 charge LED 

Indicator will blink confirming when / if battery is now fully charged. 

12.  After carefully reading these instructions and Troubleshooting (pgs. 21 - 

22) sections, should you still have questions, please e-mail our technical 
support department at: [email protected].

13.  Allow up to 3 business days for a detailed response to your questions.  

Always identify the model number of the product and revision letter of this 
manual contained on this page below.  Without this information we may 
not be able to assist you correctly.

Summary of Contents for 48021

Page 1: ...271 and 48 Volt 48021 Battery Maintainer Desulfators INSTRUCTION MANUAL All Models Include ATS Temperature Sensor installed Ring Terminals with 15A Fuse EZC 01 EZ Connector Mounting Screws Designed to...

Page 2: ...for long periods of time and the electrolyte solution begins to break down Sulfur in the solution leaches from the electrolyte sticking to the lead plates as converted lead sulfuric crystals Table Of...

Page 3: ...could result in a risk of fire and electric shock If an extension cord must be used make sure That pins on plug of extension cord are the same number size and shape as those of plug on charger That ex...

Page 4: ...ONS a Consider having someone close enough by to come to your aid when you work near a lead acid battery b Have plenty of fresh water and soap nearby in case battery acid contacts skin clothing or eye...

Page 5: ...ended rates of charge f Determine voltage of battery by referring to car owner s manual and make sure it matches output rating of battery charger 14 CHARGER LOCATION a Locate charger as far away from...

Page 6: ...le chassis and then remove clip from battery terminal f See operating instructions for length of charge information 17 FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE A SPARK NEAR THE BATTERY MAY C...

Page 7: ...ure 80 NOTE If your battery is new and you are certain it was not subject to conditions that could have caused sulfation even before you purchased it then you can disregard our recommendations for qua...

Page 8: ...mperature Compensated Hydrometer Meter or 4 ball type Full Capacity Percentage 1 270 4 Balls floating 100 1 250 3 Balls floating 75 1 190 2 Balls floating 50 1 150 1 Balls floating 25 1 120 0 Balls fl...

Page 9: ...of the battery 4 If each cell floats three 3 or more balls or 1250 on gauge type your battery can be desulfated reconditioned 5 Always rinse the tester with fresh water after every use Failure to do s...

Page 10: ...tage reaches full capacity level or no further increase is seen Note OPTIMA brand Yellow Top starter deep cycle batteries have a fully charged resting voltage of 39 3 52 4 OCV Increase above values ac...

Page 11: ...BatteryMINDer Models 36271 48021 Rev D 120913 Page 11 P N VDC36271 48021 MNL...

Page 12: ...tach output to battery terminals RED band Positive BLACK band Negative 3 Ambient Temperature Sensor ATS 1 9 comes already installed on the Temperature Sensor input connector 2 Do not detach 4 Plug AC...

Page 13: ...attery charge status 2 Temperature Sensor input connector 3 Output cord with quick connect plug 4 Battery Type selection button 5 Input power cordset 6 Mounting tabs 7 Ring Terminal cordset with quick...

Page 14: ...wait 10 seconds LED Status Table LED Status Power Error and Charging Maintaing LEDs POWER ERROR CHARGE FLOAT A C power disconnected battery connected correctly OFF OFF At SoftStart mode Bulk charge m...

Page 15: ...he Ring Terminal Assembly Note the BatteryMINDer cord must be removed by pulling on the connector plug not the cord Any damage to the connectors or cord will not be covered by the warranty 2 Never use...

Page 16: ...ord into a standard grounded 120 Vac electrical outlet The Power ON LED Indicator will light GREEN If it does not light GREEN check the outlet to be sure it is functioning In addition be sure if outle...

Page 17: ...time allowed by charger If you are certain battery is not defective having read and understood completely all of the above concerns and conditions proceed to reboot unit by unplugging from A C electri...

Page 18: ...48021 MNL 12V _ 12V _ 12V _ _ 6V _ 6V _ 6V _ _ _ _ 6V 6V 6V _ 8V 8V 8V 8V 8V 8V TO CHARGER TO CHARGER 8 VOLT SERIES 6V 6V 6V 6V 6V 6V 6V 6V TO CHARGER TO CHARGER 6 VOLT SERIES 36 Volt 48 Volt Battery...

Page 19: ...ge and Float Voltages 36V 48V Temperature Charge Float Charge Float 120 F 41 4 38 4 55 2 V 51 2 V 110 F 120 F 41 7 38 7 55 6 V 51 6 V 100 F 110 F 42 0 39 0 56 0 V 52 0 V 90 F 100 F 42 3 39 3 56 4 V 52...

Page 20: ...d ever be MAINTAINED in sets of 2 or more Test each cell of All filler cap batteries using an accurate temperature compensated hydrometer Test sealed no filler caps batteries using an accurate DIGITAL...

Page 21: ...ged it should recover its voltage rise above 6 volts suffi ciently to allow charger to begin an attempt to fully recharge it Battery has rested and still cannot be recovered recharged Battery should b...

Page 22: ...____ _______________________________________________________ _______________________________________________________ _______________________________________________________ TROUBLESHOOTING GUIDE PROBL...

Page 23: ...___________________________________________ Model BatteryMINDer 36271 or 48021 Serial Number ___________________________ Place of purchase ___________________________ Date of purchase ________________...

Page 24: ...r Limited Warranty Your BatteryMINDer product is warrantied for FIVE years from date of purchase at retail against defective material or workmanship We make no warranty other than this limited warrant...

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