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Sender: "piclist-bounces@mit.edu" Date: Fri, 14 Feb 2020 08:56:39 -0800 Subject: [EE] large USB power banks Thread-Topic: [EE] large USB power banks Thread-Index: AdXjV31054SvDk+9RlydKL60+BqHlw== Message-ID: List-Help: List-Subscribe: , List-Unsubscribe: , Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US Content-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: TempError X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: acceptlanguage: en-US received-spf: None (protection.outlook.com: backcountryaccess.com does not designate permitted sender hosts) dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=k2mdv.onmicrosoft.com; s=selector2-k2mdv-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=YyiXWF54m9kQNHh2/QBbADj7EFCgS2pS6Ia7/AV0aM0=; b=lnWnC+8dbn29Duk+BgeWCmd0hMR8W3O3eL3+FiVcJdU/izJemmVT4GCc2URiP1LlKTif3quPAVx7qpjWDlai8nJCPN7FLl+2RY/li0yK/2WM/GVzmlWlkOz+FZNR3pZx+snaeRn0lWFlpKtlg5z9Vh416vADLqV31OGaXxeXJ6I= authentication-results: spf=pass (sender IP is 40.107.236.105) smtp.mailfrom=backcountryaccess.com; mit.edu; dkim=pass (signature was verified) header.d=k2mdv.onmicrosoft.com; mit.edu; dmarc=pass action=none header.from=backcountryaccess.com;compauth=pass reason=100 x-originating-ip: [74.220.37.42] errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-topics: [EE] x-content-filtered-by: Mailman/MimeDel 2.1.6 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 I'm looking for a couple of large USB power banks, and hoping to get some r= ecommendations. I see mAh ratings that are starting to sound like stun gun voltages, which = is why I'm not just grabbing the biggest number on Amazon The application is astrophotography, running a bunch of peripherals includi= ng a lens heater. -- David VanHorn Lead Hardware Engineer Backcountry Access, Inc. 2820 Wilderness Pl, Unit H Boulder, CO 80301 USA phone: 303-417-1345 x110 email: david.vanhorn@backcountryaccess.com --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .