SERVICE MANUAL Level &2
Contents
1. Note First zoom Explanation huit name fault K Count of positions TEPA Page 26 30 CONFIDENTIAL Copyright 2007 NOKIA All rights reserved ISSUE 1 NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 22 QUICK TROUBLE SHOOTER IHF SPEAKER Explanation 6 WE tal gt Sa 5 a PET T1 037576 Page 27 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 23 QUICK TROUBLE SHOOTER DISPLAY LCD PM 96X68 Explanation Symtom 3 Zoom position Fault Count of Note First zoom name fault starts with positions LCD 6x68 5 ATO SSe0S av Pym taf D E EE y ae VW ec eeu M i rsy y Zeper EL 1 putrrerer gt Le s_n n Z N sabes E yy emer Citi ITS LEO Page 28 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 24 QUICK TROUBLE SHOOTER DISPLAY LCD PM 128X160 Zoom position Note First zoom starts with Pan Fr A PET T1 037576 Explanation Fault Count of positions ae2. ep pero i tt Page 29 30 CONFIDENTIAL Copyright 2007 NOKIA All rights reserved ISSUE 1 NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 25 QUICK TROUBLE SHOOTER MICROPHONE Explanation Symtom 3 Zoom position iad Count of Note First zoom fault starts with positions Page 30 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved
3. Nokia Nokia Connecting People and Nokia X and Y are trademarks or registered trademarks of Nokia Corporation Other product and company names mentioned herein may be trademarks or tradenames of their respective owners Nokia operates a policy of continuous development Nokia reserves the right to make changes and improvements to any of the products described in this document without prior notice Under no circumstances shall Nokia be responsible for any loss of data or income or any special incidental consequential or indirect damages howsoever caused The contents of this document are provided as is Except as required by applicable law no warranties of any kind either express or implied including but not limited to the implied warranties of merchantability and fitness for a particular purpose are made in relation to the accuracy reliability or contents of this document Nokia reserves the right to revise this document or withdraw it at any time without prior notice The availability of particular products may vary by region IMPORTANT This document is intended for use by qualified service personnel only Page 3 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 3 WARNINGS AND CAUTIONS Warnings and Cautions Please refer to the phone s user guide for instructions relating to operation care and maintenance including impor tant safety infor
4. Place the UI PWB ASSY onto the B COVER paving attention to he guide pins of the B COVER _ ghi S jki mno G er 5 Tighten the screws to the torque of 15Ncm in the order Shown Page 15 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 15 LOWER BLOCK DISASSEMBLY various Torx bits r long eea AES TA 01 side Cotter bit holder JORF 6 ESD brush t 4x hof Slotted metal oa h sciew tweezers saut e 3x farfor Eer sere 55 93 driver SC SSO1S S E Lower Block Disassembly 1 Nokia 2660 Lower Block Disassembly 2 You will need the Nokia Standard Toolkit version 2 as well as the hinge opening tool SS 6 Also refer to the General Mechanical Guideline Video for additional hints about the tools and component handling ML uN CATT anna GEE TETTETETT IMEL 00440 1 0 1 2 9870400 Prototype 0911 RUN r 3 Unlock and remove the BATTERY COVER Remove the battery if inserted ar ey A 0 1 Ve RIERA RS Pah 5 Open the Lower Block with the SS 93 starting on the hinge 116 Also open the snaps on the left and right side of the Lower side Block Page 16 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 Lretat D COVER from the C COVER 9 Gently open the PWB FLEX connector with move the ENGINE MODULE
5. damaging surrounding components un ir Y LL AS 11 Remove the KEYMAT 12 Unlock the ANTENNA MODULE with SS 93 Page 17 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 14 Remove the MICROPHONE oe el Lad TN LA SAS 17 Carefully move the PWB FLEX into the hole of the C COVER 18 as Shown in the picture Page 18 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved 4 direction shown VAL dt Ve D Da k S sel MM i d A NS CSN 23 and remo inished Page 19 30 2660 RM 292 RM 293 Service Manual Level 1 amp 2 L ANI i 19 Press the end of the PWB FLEX FPC B2B ASSY into the 20 Turn around the Upper Block and the C COVER and remove the end of the PWB FLEX FPC B2B ASSY CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 16 LOWER BLOCK ASSEMBLY HINTS NOKIA 2660 Lower Block Assembly Hints i 1 Nokia 2660 Lower Block Assembly Hints 2 Very gently put the PWB FLEX into the slot of the C COVER Avoid squeezing the flex 4 RU j UORD a i i sai kg Lye re lt a gt A wA M d gt OX ie N Pathe F y CHE ARE ee 01 _ 5 3 Insert the HINGE MODULE into the B COVER Push down the 14 Check the
6. PARTS OVERVIEW 2660 RM 292 RM 293 SPARE PARTS OVERVIEW A1 B COVER ASSY 10006 10008 A COVER ASSY 10001 gt LN 7 Z N R die EARPIECE A1 _ Se 10007 i f B COVER A1 _ 2 lt 10008 PWB FLEX FPC B2B ASSY 10102 A2 C COVER ASSY 10202 10203 LCD PM 96x68 10002 FLIP STOPPER A2 10202 e UI PWB ASSY_ 10004 C COVER A2 10203 LCD PM 128x160 10005 DOME os R uan e a a A 10203 BB SHIELD LID ASSY A3 Et IN 10208 Fe er FM BT SHIELD LID ASSY A3 RF ASIC SHIELD LID ASSY TS T ii hi is A3 FEM SHIELD LID A3 ET TYPE LABEL A3 Su m A i LEVEL 384 ONLY A4 ANTENNA MODULE FOR EU A5 D COVER ASSY 10214 10217 10212 10215 EAO MICROPHONE A5 L 10214 D COVER A5 __ AN MICROPHONE RUBBER A5 ANTENNA A4 10216 10213 IHF SPEAKER A4 10212 SIM DOOR A5 10217 sf CONNECTOR COVER k ae SCREW i 10218 inl These parts can not be reused after removal BATTERY COVER ve only available as Ver 1 0 nan ies pae Page 7 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved HINGE MODULE Vu NS SCREW Ml 10009 if SCREW COVER w 10010 NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 9 HANDLING WASTE RECYCLING IN NOKIA REPAIR SERVICE Please refer to the document Handling Waste in NOKIA Repair Service on your local delivery server e g NOL Page 8 30 CONFIDENTIAL ISSUE 1 Copyright 20
7. areas Its moving parts can be damaged e Do not store the phone in hot areas High temperatures can shorten the life of electronic devices damage batteries and warp or melt certain plastics e Do not store the phone in cold areas When it warms up to its normal temperature moisture can form inside which may damage electronic circuit boards e Do not drop knock or shake the phone Rough handling can break internal circuit boards e Do not use harsh chemicals cleaning solvents or strong detergents to clean the phone e Do not paint the phone Paint can clog the moving parts and prevent proper operation e Use only the supplied or an approved replacement antenna Unauthorised antennas modifications or attachments could damage the phone and may violate regulations governing radio devices All of the above suggestions apply equally to the product battery charger or any accessory 6 BATTERY INFORMATION Note A new battery s full performance is achieved only after two or three complete charge and discharge cycles The battery can be charged and discharged hundreds of times but it will eventually wear out When the operating time talk time and standby time is noticeably shorter than normal itis time to buy a new battery Use only batteries approved by the phone manufacturer and recharge the battery only with the chargers approved by the manufacturer Unplug the charger when not in use Do not leave the battery connected to a charger fo
8. e g recycling Do not dispose as household waste Page 5 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 1 EXPLODED VIEW See corresponding ITEM CIRCUIT REF in the Spare Parts Service Bulletins on NOL 2660 RM 292 RM 293 EXPLODED VIEW A COVER ASSY 10001 N 7 D PWB FLEX FPC B2B ASSY LCD PM 96x68 10002 UI PWB ASSY 10004 rey MAGNET A1 LCD PM 128x160 T 10006 10005 a HINGE MODULE EARPIECE A1 Yn s 10007 B COVER A1 SCREW sf 10008 If NE ih 10009 NN jj SCREW COVER en UN 10010 FLIP STOPPER A2 10202 C COVER A2 10203 ste CONNECTOR COVER 10204 LIGHT SWAP PWB ENGINE MODULE A3 KEYMAT 10203 e 10201 DOME SHEET A3 y 74 E BB SHIELD LID ASSY A3 10205 ll ass 1 10208 am i a AP Er Le ii FM BT SHIELD LID ASSY A3 RF ASIC SHIELD LID ASSY A3 ee A Il 10209 10207 Ill MICROPHONE A5 FEM SHIELD LID aD 10214 10210 MICROPHONE RUBBER A5 ANTENNA A4 10215 2 10213 Be p SIM DOOR A5 IHF SPEAKER A4 _ A 10217 210212 fi TYPE LABEL A3 e Il LEVEL 384 ONLY 10211 D COVER A5 10216 pi SCREW inl 10218 inl These parts can not be reused after removal BATTERY COVER 10219 onl ilabl Page 6 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 8 SPARE
9. mechanical functionality of the Hinge HINGE spring and maneuver it into the recess of the C COVER TEER LETT TT EI CODE 8CA1I14656 i POD ee wid IMEI 004401 01 235294 0 Prototype 0311 f p de KIK LS Curs 2 5 Fit the KEYMAT before starting the assembly procedure 6 Always use new screws when assembli ng the unit Page 20 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 E 7 Tighten the four screws to the torque of 15Ncm in the order shown Page 21 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 17 LEGEND FOR QUICK TROUBLE SHOOTER Legend for Quick Trouble Shooter This legend is valid for all parts of the Quick Trouble Shooter Follow the steps until the problem is solved If this doesn t help you are not authorized to go forward Check the mechanical condition of the component bent broken or missing Only marked components can be replaced If additionally CHANGE ASSY appears then change the whole assembly e g A4 D COVER ASSEMBLY Cloth usage Check pads or contacts for optical and mechanical condition particularly regarding to corrosion Clean it if necessary Measure component for electrical functionality and change if needed Level 2 only ESD Brush usage Check contacts for optical and mechanical con
10. 07 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 10 LEVEL 2 SOLDER COMPONENTS 2660 RM 292 RM 293 Level 2 solder components Solder components only for LEVEL 2 PET T1 037576 eel eva oe re oh a 2 s a a Ver 1 0 Page 9 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 11 SERVICE TOOLS FLS 5 incl ACF 8 Driver and User ACF 8 Travel Charger AC 4 Guide Universal Power Supply is used to Small and lightweight charger for Dongle and flash device incorporated power FLS 4S fast charging of your phone battery into one package developed specifi cally for POS use CA 112DS 100cm CA 112DS Service Cable to connect the PC with Soldering Jig the Easy Flash II connector 031729 Sn95 5Ag3 8Cu0 7 Flutmittelgehalt 2 5 DIN EN 29454 Typ F sw 32 Internal Battery BL 4B Lead free Solder Wire 0772040 Inserted under the back cover this Mandatory for lead free products NMP standard Toolkit V2 Li Ion battery provides power ina Level 2 only For more informations refer to the lightweight package Service Bulletin SB 011 on NOKIA On line Supplier or manufacturer contacts for tool re order can be found in Recom mended service equipment docu ment on NOKIA Online Page 10 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 26
11. 115 SN E PASS PE A y 5 Unlock the A COVER ASSY with the SS 93 starting at the 6 Release the snaps on the right side of the upper block hinge side dis D Page 12 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 ON AC Se o RSS LE Case RS PSE Fors 9 Remove the A COVER ASSY 10 Gently open SS 93 11 Carefully open the PWB FLEX connector Avoid damaging 12 Unlock the UI PWB ASSY with the SS 93 surrounding components Page 13 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 i8 CS 103261 70740 485 0123456789 JIKE aai 13 Remove the UI PWB ASSY from the B COVER KIOIN FN UET 15 Gently open the connector of the LCD PM 96x68 with the 16 Carefully separate the LCD PM 96x68 from the UI PWB ASSY SS 93 Take care to the surrounding components 17 Ensure that no adhesive residues remain The Disassembly procedure is now finished Page 14 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 14 UPPER BLOCK ASSEMBLY HINTS NOKIA 2660 Upper Block Assembly Hints 1 Nokia 2660 Upper Block Assembly Hints 2 Align the LCD PM 96X68 exactly with the marking corner on the UI PWB ASSY and close the LCD connector Gz 3
12. 60 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 12 SW UPDATE Flash Concept Point of Sales To use FLS 5 Flash Dongle you have to follow the user guide inside the sales package Please check always for the latest version of flash software which is available on For flashing use the CA 112DS cable DCT 4 EASY FLASH FLASH IT CONCEPTS FLS 5 with FLS 5 CA 91DS CA 112DS COUNTRY SPECIFIC ACF 8 optinal ADAPTER RA m CA 91DS CA 112DS SOFTWARE Easy Flash Easy Flash II RODUCT SPECIFIC ATTERY anne Page 11 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 13 UPPER BLOCK DISASSEMBLY various Torx bits r long Nosed pliers EN S 9 9 side Cutter bit holder ERF G 7 __ SC SSOlS ae aay ESD r 5 l schw tweezers 4 Al driger str fiver Upper Block Diassembly 2 You will need the Nokia Standard Toolkit version 2 as well as he hinge opening tool SS 6 Also refer to the General Mechanical Guideline Video for additional hints about the tools and component handling ihr ue 2 abc def 3 oe Ba ey ae i Y 3 Remove the battery if inserted Cover all sensitive surfaces Unscrew the two screws in the order shown and discard them ith the protective film Remove the SCREW COVER and discard hem ae NEE f Pi i aoe D RED RUES j 4 wt ek wM LISAL
13. LAY LCD PM 128X160 25 QUICK TROUBLE SHOOTER MICROPHONE Page 2 30 CONFIDENTIAL Copyright 2007 NOKIA All rights reserved 2660 RM 292 RM 293 Service Manual Level 1 amp 2 D QJ I OUI U1 B R Wow ISSUE 1 NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 1 CHANGE HISTORY 10 May 2007 Initial draft The purpose of this document is to help NOKIA service levels 1 and 2 workshop technicians to carry out service to NOKIA products This Service Manual is to be used only by authorized NOKIA service suppliers and the content of it is confidential Please note that NOKIA provides also other guidance documents e g Service Bulletins for service sup pliers follow these regularly and comply with the given instructions While every endeavor has been made to ensure the accuracy of this document some errors may exist If you find any errors or if you have further suggestions please notify NOKIA using the address below CMO Operation amp Logistics Training and Vendor Development Multimedia Creation amp Support ailto Service Manual nokia com Please keep in mind also that this documentation is continuously being updated and modified so watch always out for the newest version 2 COPYRIGHT Copyright 2007 Nokia All rights reserved Reproduction transfer distribution or storage of part or all of the contents in this document in any form without the prior written permission of Nokia is prohibited
14. NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 SERVICE MANUAL Level 1 amp 2 NOKIA 2660 RM 292 RM 293 Transceiver characteristics Band RM 292 EGSM Dual band 900 1800MHz RM 293 GSM Dual band 850 1900MHz Display Main LCD 128x160 pixel 65k colors Front LCD 96x68 pixel black amp blue colors Camera Operating System Series 40 Connections Wireless Bluetooth Connector Easy Flash II Connector Memory card Transceiver with BL 4B Li Ion battery pack Talk time Standby Note Depends on network parameters up to 7h up to 14 5days Page 1 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA Care TABLE OF CONTENTS 1 CHANGE HISTORY 2 COPYRIGHT 3 WARNINGS AND CAUTIONS 4 ESD PROTECTION 5 CARE AND MAINTENANCE 6 BATTERY INFORMATION T EXPLODED VIEW 8 SPARE PARTS OVERVIEW 9 HANDLING WASTE RECYCLING IN NOKIA REPAIR SERVICE 10 LEVEL 2 SOLDER COMPONENTS 11 SERVICE TOOLS 12 SW UPDATE 13 UPPER BLOCK DISASSEMBLY 14 UPPER BLOCK ASSEMBLY HINTS 15 LOWER BLOCK DISASSEMBLY 16 LOWER BLOCK ASSEMBLY HINTS 17 LEGEND FOR QUICK TROUBLE SHOOTER 18 QUICK TROUBLE SHOOTER POWER ON 19 QUICK TROUBLE SHOOTER CHARGING 20 QUICK TROUBLE SHOOTER NO SERVICE 21 QUICK TROUBLE SHOOTER EARPIECE 22 QUICK TROUBLE SHOOTER IHF SPEAKER 23 QUICK TROUBLE SHOOTER DISPLAY LCD PM 96X68 24 QUICK TROUBLE SHOOTER DISP
15. are removed must be handled with ESD protection The SIM card can be replaced without ESD protection if the product is otherwise ready for use To replace the covers ESD protection must be applied All electronic parts of the product are susceptible to ESD Resistors too can be damaged by static electricity discharge All ESD sensitive parts must be packed in metallized protective bags during shipping and handling outside any ESD Protected Area EPA Every repair action involving opening the product or handling the product components must be done under ESD protection ESD protected spare part packages MUST NOT be opened closed out of an ESD Protected Area For more information and local requirements about ESD protection and ESD Protected Area contact your local Nokia After Market Services representative Page 4 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 5 CARE AND MAINTENANCE This product is of superior design and craftsmanship and should be treated with care The suggestions below will help you to fulfil any warranty obligations and to enjoy this product for many years e Keep the phone and all its parts and accessories out of the reach of small children e Keep the phone dry Precipitation humidity and all types of liquids or moisture can contain minerals that will corrode electronic circuits e Do not use or store the phone in dusty dirty
16. dition particularly regarding to corrosion Clean it if necessary Fault Count of name fault positions Zoom positio Note First zoom starts with Page 22 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 18 QUICK TROUBLE SHOOTER POWER ON Explanation pew ell Ba AR a A Zoom position iad Count of Note First zoom fault starts with positions Page 23 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Ca re Service Manual Level 1 amp 2 19 QUICK TROUBLE SHOOTER CHARGING Explanation rl 4 Zoom position pond Count of Note First zoom fault starts with positions Page 24 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 20 QUICK TROUBLE SHOOTER NO SERVICE Explanation 4 Zoom position Fault Count of Note First zoom t starts with positions name fault Page 25 30 CONFIDENTIAL ISSUE 1 Copyright 2007 NOKIA All rights reserved NOKIA 2660 RM 292 RM 293 Care Service Manual Level 1 amp 2 21 QUICK TROUBLE SHOOTER EARPIECE Zoom position starts with
17. mation Note also the following Warnings 1 CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES FITTED WITH ELECTRONIC ENGINE MANAGEMENT SYSTEMS AND ANTI SKID BRAKING SYSTEMS UNDER CERTAIN FAULT CONDITIONS EMITTED RF ENERGY CAN AFFECT THEIR OPERATION IF NECESSARY CONSULT THE VEHICLE DEALER MANUFACTURER TO DETERMINE THE IMMUNITY OF VEHI CLE ELECTRONIC SYSTEMS TO RF ENERGY 2 THEHANDPORTABLE TELEPHONE MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE ATMOSPHERES EG PETROL STATIONS SERVICE STATIONS BLASTING AREAS ETC 3 OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT INCLUDING CELLULAR TELEPHONES MAY INTERFERE WITH THE FUNCTIONALITY OF INADEQUATELY PROTECTED MEDICAL DEVICES CONSULT A PHYSICIAN OR THE MANUFACTUR ER OF THE MEDICAL DEVICE IF YOU HAVE ANY QUESTIONS OTHER ELECTRONIC EQUIPMENT MAY ALSO BE SUBJECT TO INTERFERENCE Cautions 1 Servicing and alignment must be undertaken by qualified personnel only 2 Ensure all work is carried out at an anti static workstation and that an anti static wrist strap is worn 3 Use only approved components as specified in the parts list 4 Ensure all components modules screws and insulators are correctly re fitted after servicing and alignment 5 Ensure all cables and wires are repositioned correctly 4 ESD PROTECTION Nokia requires that service points have sufficient ESD protection against static electricity when servicing the phone Any product of which the covers
18. r longer than a week since overcharging may shorten its lifetime If left unused a fully charged battery will discharge itself over time Temperature extremes can affect the ability of your battery to charge For good operation times with Ni Cd NiMh batteries discharge the battery from time to time by leaving the product switched on until it turns itself off or by using the battery discharge facility of any approved accessory available for the product Do not attempt to discharge the battery by any other means Use the battery only for its intended purpose Never use any charger or battery which is damaged Do not short circuit the battery Accidental short circuiting can occur when a metallic object coin clip or pen causes direct connection of the and terminals of the battery metal strips on the battery for example when you carry a Spare battery in your pocket or purse Short circuiting the terminals may damage the battery or the connecting object Leaving the battery in hot or cold places such as in a closed car in summer or winter conditions will reduce the capacity and lifetime of the battery Always try to keep the battery between 15 C and 25 C 59 F and 77 F A phone with a hot or cold battery may temporarily not work even when the battery is fully charged Batteries performance is particularly limited in temperatures well below freezing Do not dispose batteries in a fire Dispose of batteries according to local regulations
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