{"id":12858,"date":"2026-04-17T00:34:11","date_gmt":"2026-04-16T16:34:11","guid":{"rendered":"https:\/\/www.balderpower.com\/?post_type=product&p=12858"},"modified":"2026-04-17T00:34:15","modified_gmt":"2026-04-16T16:34:15","slug":"panasonic-cf-vzsu28-battery-replacement","status":"publish","type":"product","link":"https:\/\/www.balderpower.com\/de\/panasonic-cf-vzsu28-battery-replacement\/","title":{"rendered":"CF-VZSU28 58Wh 10.65V Li-ion Battery for Toughbook CF-19 MK1\u2013MK8 \u2014 CF-VZSU48 CF-VZSU48U CF-VZSU50"},"content":{"rendered":"

The Panasonic Toughbook CF-19 ran from 2006 through its MK8 generation \u2014 an unusually long production lifecycle for any laptop platform, let alone a rugged one. The reason it lasted eight MK generations is the form factor: a semi-rugged rotating convertible that could function as both a standard laptop and a tablet, with a digitizer touchscreen, making it practical for law enforcement officers, field service engineers, military logistics personnel, and utility inspectors who needed to take notes or capture signatures by hand. No other Toughbook platform spanned that many generations with the same battery interface unchanged, which is what makes the CF-VZSU28 \/ CF-VZSU48 battery family so prevalent in the aftermarket today.<\/p>\n

The P\/N history for this battery is worth understanding before placing a volume order. CF-VZSU28<\/strong> is the original Panasonic OEM part number, introduced with the CF-19 at launch. As the platform evolved through MK3 and beyond, Panasonic issued updated P\/Ns \u2014 CF-VZSU48, CF-VZSU48U, CF-VZSU48R, CF-VZSU50 \u2014 but the battery itself remained electrically and physically identical. Every aftermarket listing that cross-references all these P\/Ns is correct: they are all the same 58Wh \/ 10.65V \/ 6-cell unit. The confusion in the market arises because some suppliers list only the newer CF-VZSU48U and omit CF-VZSU28, leaving older-generation procurement officers searching by the original P\/N unable to find supply.<\/p>\n

One operational detail relevant to B2B buyers managing CF-19 fleets: the CF-19 in tablet mode (screen rotated flat, stylus input active) draws more power than in standard laptop mode because the digitizer layer remains energized. Under continuous tablet-mode use \u2014 signature capture, form filling, field data collection \u2014 runtime is typically 3\u20134.5 hours from a 58Wh battery. In standard laptop mode with the screen in its conventional position, expect 5\u20137 hours under mixed workloads. Procuring the correct 58Wh \/ 5,700mAh capacity (not the reduced 52\u201356Wh variants that circulate under the same P\/N) is therefore directly relevant to whether your CF-19 fleet covers a full shift in tablet-mode operation.<\/p>\n

Verified Compatible Part Numbers (P\/N):<\/strong>
\nCF-VZSU28 \u00b7 CF-VZSU48 \u00b7 CF-VZSU48U \u00b7 CF-VZSU48R \u00b7 CF-VZSU50 \u00b7 CF-VZSU50U \u00b7 CF-VZSU58U \u00b7 CF-VZSU58 \u00b7 CF-VZSU87R \u00b7 CFVZSU48 \u00b7 CF-VZSU48CJS \u00b7 CS-CRF9NB (third-party battery code)<\/p>\n

Gepr\u00fcfte kompatible Modelle:<\/strong><\/p>\n

\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Generation<\/th>\nPlatform Details<\/th>\n<\/tr>\n<\/thead>\n
CF-19 MK1<\/td>\nIntel Core Solo \/ Core Duo \u2014 original 2006 platform<\/td>\n<\/tr>\n
CF-19 MK2<\/td>\nIntel Core 2 Duo<\/td>\n<\/tr>\n
CF-19 MK3<\/td>\nIntel Core 2 Duo \u2014 updated connector, same battery<\/td>\n<\/tr>\n
CF-19 MK4<\/td>\nIntel Core i5 (first gen)<\/td>\n<\/tr>\n
CF-19 MK5<\/td>\nIntel Core i5 second gen<\/td>\n<\/tr>\n
CF-19 MK6<\/td>\nIntel Core i5 third gen<\/td>\n<\/tr>\n
CF-19 MK7<\/td>\nIntel Core i5 fourth gen (Haswell)<\/td>\n<\/tr>\n
CF-19 MK8<\/td>\nIntel Core i5 fifth gen \u2014 final CF-19 production generation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u26a0\ufe0f Not compatible with CF-18<\/strong> (earlier Panasonic convertible, different battery), or the CF-C2 convertible series (uses CF-VZSU80U). The CF-19 is a distinct platform with its own battery family.<\/p>","protected":false},"excerpt":{"rendered":"

    \n
  • \n

    Part Numbers:<\/strong> CF-VZSU28 \/ CF-VZSU48 \/ CF-VZSU48U \/ CF-VZSU48R \/ CF-VZSU50 \/ CF-VZSU50U \/ CF-VZSU58U \/ CF-VZSU87R \/ CFVZSU48 \u2014 58Wh \/ 10.65V \/ 6-Cell Li-ion \/ 5,700mAh<\/p>\n<\/li>\n

  • \n

    Full Generation Coverage:<\/strong> Panasonic Toughbook CF-19 MK1 through MK8 \u2014 one of the longest-running fully rugged convertible tablet-laptop platforms; all eight MK generations use the same battery bay and connector<\/p>\n<\/li>\n

  • \n

    Platform Note:<\/strong> The CF-19 is a semi-rugged rotating-screen convertible, not a standard laptop \u2014 battery draw profile differs from the CF-29\/CF-30\/CF-53 series; runtime under tablet-mode touch use is typically lower than laptop-mode<\/p>\n<\/li>\n

  • \n

    Factory Direct Supply:<\/strong> Small-batch replenishment accepted; suited for government IT sustainment programs, law enforcement equipment services, and specialist rugged device distributors<\/p>\n<\/li>\n

  • \n

    Qualit\u00e4tssicherung:<\/strong> 12-month warranty; \u226595% of rated 58Wh verified per batch; full electrical test report with sample orders<\/p>\n<\/li>\n<\/ul>","protected":false},"featured_media":12859,"template":"","meta":{"_acf_changed":false,"nf_dc_page":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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