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Before using your new Charger powerbank, read carefully this User’s manual.

Product design and specifications are subject to change, without notice.

WARRANTY

This Steren product is warranted under normal usage against defects in workmanship 

and materials to the original purchaser for one year from the date of purchase.

CONDITIONS

1.- This warranty card with all the required information, invoice or purchase ticket, product 

box or package, and product, must be presented when warranty service is required.

2.- If the product stills on the warranty time, the company will repair it free of charge.

3.- The  repairing  time  will  not  exceed  30  natural  days,  from  the  day  the  claim  was 

received.

4.- Steren sell parts, components, consumables and accessories to customer, as well 

as warranty service, at any of the addresses mentioned later.

THIS WARRANTY IS VOID IN THE NEXT CASES:

If the product has been damaged by an accident, acts of God, mishandling, leaky batteries, 

failure to follow enclosed instructions, improper repair by unauthorized personnel, improper 

safe keeping,   among others.

a) The consumer can also claim the warranty service in the purchase establishment.

b) If you lose the warranty card, we can reissue it, if you show the invoice or purchase 

ticket.

RETAILER INFORMATION

Name of the retailer

Address

Product

Brand

Part number

Serial number

Date of delivery

Product: 

Charger powerbank

Model: 903-300

Brand: Steren

In case your product fails 

or have questions, please 

contact your nearest dealer. 

If you are in Mexico, please 

give a call to our Call Center.

   

Call Center

01 800 500 9000

Important

Highlights

   Do not use or store the equipment near wet places it. May cause malfunction or 

shock hazard.

   Clean only with a soft, dry cloth.

   Do not drop or hit the equipment, may cause damages.

Controls

Operation

Batteries life time

   Your new battery charger allows you to charge Ni-Cd batteries.

   It has 5 contacts and you can recharges batteries in all capacities: 1 to 4pcs AAA, AA, C, 

D and/ or 9V.

   It can recharge from a single battery.

   It has a switch to verify that the battery is loaded (only cylindrical batteries).

   It has a voltage switch.

1

. Charge/ test switch.

2

. Test´s LED indicator.

3

. Load´s LEDs indicators.

1

.  Move  the  voltage  switch  in  accord  to  the  electrical 

voltage on your home or office.

Specifications

Input:  

 

 

127/220V~ 50/60Hz

Output: 

 

 

1.2V - - - 120mA

 

 

 

9V - - - 13mA

Nominal consumption:  

3.6 kWh/month

Stand-by power consumption: 

0.54 kWh/month

Make sure to discharge completely the batteries before to charging

   Ni-Cd batteries can be recharged up to 1000 times, depending of the use, charging time 

and battery.

2

. Connect the charger to electrical outlet.

3

. If you want to make a test (know if the battery has energy) place the battery in the last 

compartment and move the switch to "Test". If the battery has energy the LED indicator 

will light.

4

. To use the charge function, place the rechargeable batteries with the correct polarity. The 

LED indicators light up according the place where the batteries are.

Battery type

Full charge

Normal charge

AAA - 1.2 Vcc

8 - 9h

5 - 6h

AA - 1.2 Vcc

9h

006 - 9 Vcc

14h

C - 1.2 Vcc

9h

9h

D - 1.2 Vcc

14h

14h

32h

1200 mAh

2100 mAh

200 mAh

1100 mAh

10h

10h

15h

9h

1200 mAh

10h

1800 mAh

700 mAh

15h

6h

1800 mAh

15h

4000 mAh

33h

Fast charge

Charging time batteries

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