Ergotron WorkFit TX Standing Desk Converter price on request user replaceable Typical Recharge Time AKM600AP 50 user replaceable Typical Recharge Time 16 h Replacement Battery Cartridge APCRBC165 Expected Battery Life 3 to 5 years Extended Runtime No external battery pack is documented for this model Runtime at Load Schneider publishes no runtime versus load figures for this model — contact SourceIT with your load in watts for a sizing calculation Communications & Management Does the keyboard need to be paired separately which is the usual hidden cost of leaving one on the desk or you can add an accessory WorkFit monitor mount kit — that kit is rated at 6–14 lbs (2