Keysight N9923-90001 User’s Guide251Safety ConsiderationsFor the External Battery Charger (N9910X-872)For the External Battery Charger (N9910X-872)For the BatteryLithium battery packs may get hot, explode, or ignite and cause serious injury ifexposed to abuse conditions. Be sure to follow these safety warnings:The AC/DC adapter is for indoor use only.Never use a modified or damaged charger. Use the original AC–DCadapter ONLY.The AC/DC adapter is designed for use in Installation Category II andPollution Degree 2 per IEC 61010-1.If charging batteries externally, use the optional external charger availablefrom Keysight, or another SMBus charger of level II or higher.Never use a non–SMBus charger because the battery issues commandsover the SMBus to the charger to control the charge rate and voltage.Never use a modified or damaged charger.External AC/DC powersupply, U.S. FCCcomplianceMeets the required verification equipment authorization rules.This device complies with part 15 of the FCC Rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference, and (2) this device must acceptany interference received, including interference that may cause undesired operation.Lithium–ion batteries:—Must not be exposed to high temperatures (>70°C) or fire.—Must be kept away from children.—Must not be short circuited.—Must be replaced only with Keysight qualified Li–ion batteries.—If replaced or charged improperly, there is a danger of explosion.Do not connect the positive terminal and negative terminal of thebattery to each other with any metal object (such as wire).Do not carry or store the battery with necklaces, hairpins, or othermetal objects.
