Lenovo 90W AC/DC manual Heat and product ventilation

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discharged state could increase the risk of a battery short circuit, which could shorten the life of the battery and can also pose a safety hazard. Do not let rechargeable Lithium-Ion batteries completely discharge or store these batteries in a discharged state.

Heat and product ventilation

Computers generate heat when turned on and when batteries are charging. Notebook PCs can generate a significant amount of heat due to their compact size. Always follow these basic precautions:

vDo not leave the base of your computer in contact with your lap or any part of your body for an extended period when the computer is functioning or when the battery is

charging. Your computer produces some heat during normal operation. Extended contact with the body could cause discomfort or, potentially, a skin burn.

vDo not operate your computer or charge the battery near flammable materials or in explosive environments.

vVentilation slots, fans and/or heat sinks are provided with the product for safety, comfort, and reliable operation. These features might inadvertently become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover or disable these features.

CD and DVD drive safety

CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or otherwise physically damaged, it is possible for the disc to break apart or even shatter when the CD drive is in use. To protect against possible injury due to this situation, and to reduce the risk of damage to your machine, do the following:

vAlways store CD/DVD discs in their original packaging

vAlways store CD/DVD discs out of direct sunlight and away from direct heat sources

vRemove CD/DVD discs from the computer when not in use

vDo not bend or flex CD/DVD discs, or force them into the computer or their packaging

vCheck CD/DVD discs for cracks before each use. Do not use cracked or damaged discs

General safety guidelines

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Contents 90W AC/DC Combo Adapter User’s Guide Page 90W AC/DC Combo Adapter User’s Guide Page Safety information Iv ThinkPad 90W AC/DC Combo Adapter User’s Guide Safety information Vi ThinkPad 90W AC/DC Combo Adapter User’s Guide Service General safety guidelinesExtension cords and related devices Heat and product ventilation ThinkPad 90W AC/DC Combo Adapter User’s Guide Registering your option Xii ThinkPad 90W AC/DC Combo Adapter User’s Guide ÷≤ ΓU Xiv ThinkPad 90W AC/DC Combo Adapter User’s Guide OG C Qíy90W AC/DC ≈qt LED Πy qíy\UC LED OG C OG a ² a÷ΩT a ThinkPad 90W AC/DC Combo Adapter User’s Guide NΦ C ² B. aUW NΣ ThinkPad 90W AC/DC Combo Adapter User’s Guide @í≈ @δ ² C. Lenovo ¡O nRBA Lenovo p≤≤Gb @yºßAJUCΩ G Gí Uωso ⁿΩKGUCΩ @yºuQ ß o≈ bΩa a ºk vG ÑΦ⌠⌠MC VW¡G º 1 UCΩ NGKG UCΩ N @yºuQ ß o≈ bΩaºk vG KGUCΩ N @yºuQ ß o≈ bΩa a ºk vG k C \ºd≥G b ñJUCq¿GVW¡Gb ñJUCq¿G VW¡G b ñJUCΩ G ≥⌠Gb Dujucω GÑJUCΩ G UQ ß o≈ bΩaºk v@ⁿ UCΩ NG VW¡G Rú ¡q¿ 3 ºuSϕvMug vGⁿCGb ñJUC G VW¡G ºU UCΩ NG UC a ≤ EU Ωa a GJUyG @q @y UCΩ NGÑJUCq¿G QúA CLenovo ≡ td vº \ºd≥Gb ñJUCΩ GVW¡Gb ñJUCΩ G VW¡Gb ß@q Jucω GTQΘ Tí O ΩTCRU CRU a L B O CAñútµq Cp s q XA yX Yq MµSF B σB q ÑΦ⌠ ÑΦ⌠O R Sy G ² D. Notices Electronic emission notices Industry Canada Class B emission compliance statement Union Européenne Directive Conformité électromagnétique ² D. Notices Part Number 40Y7651 1P P/N 40Y7651