{"id":12836,"date":"2026-04-16T23:06:15","date_gmt":"2026-04-16T15:06:15","guid":{"rendered":"https:\/\/www.balderpower.com\/?post_type=product&p=12836"},"modified":"2026-04-16T23:06:19","modified_gmt":"2026-04-16T15:06:19","slug":"panasonic-cf-vzsu29-battery-replacement","status":"publish","type":"product","link":"https:\/\/www.balderpower.com\/ar\/panasonic-cf-vzsu29-battery-replacement\/","title":{"rendered":"CF-VZSU29 84Wh 11.1V 9-Cell Li-ion Battery for Toughbook CF-29 CF-51 CF-52 \u2014 CF-VZSU29ASU CF-VZSU65U"},"content":{"rendered":"

The CF-VZSU29 is the sole battery platform for three of Panasonic’s most widely deployed fully rugged Toughbooks from the 2000s era: the CF-29, CF-51, and CF-52. While these platforms are no longer in active production, their install base remains substantial \u2014 particularly in defense logistics, law enforcement evidence management, utilities field operations, and similar environments where equipment refresh cycles run 7\u201315 years rather than 3\u20135. For IT sustainment managers and depot operators keeping these units operational under long-term service contracts, CF-VZSU29 replacement batteries remain a live procurement requirement, not a legacy curiosity.<\/p>\n

The capacity variance in this aftermarket category is wider than almost any other Toughbook battery: listings range from 6,600mAh (73Wh) through 7,650mAh and up to 7,800mAh (86.6Wh). The genuine Panasonic OEM CF-VZSU29 is rated at 84Wh \/ 9-cell<\/strong>. Many aftermarket suppliers mark their listings as “7800mAh” but ship 6,600mAh units \u2014 a 15% capacity reduction that directly translates to shorter field runtime. This is not an edge case: it is the single most common complaint across CF-VZSU29 aftermarket purchases. For procurement officers responsible for maintaining operational readiness of CF-29 fleets in law enforcement or defense contexts, a battery that underdelivers on capacity creates a mission reliability problem, not just an inconvenience.<\/p>\n

One additional procurement-relevant detail: the CF-VZSU29 carries NSN 6140-01-540-6513<\/strong> \u2014 a National Stock Number assigned by the Defense Logistics Agency. Units procured through DLA channels are cross-referenced to this NSN. Aftermarket suppliers who are unfamiliar with this cross-reference typically omit it from their listings, which is why procurement officers searching by NSN often fail to find readily available aftermarket supply. We document this cross-reference on all order confirmations and can provide product data sheets formatted for DLA\/GSA procurement systems.<\/p>\n

Verified Compatible Part Numbers (P\/N):<\/strong>
\nCF-VZSU29 \u00b7 CF-VZSU29A \u00b7 CF-VZSU29AS \u00b7 CF-VZSU29ASU \u00b7 CF-VZSU29AU \u00b7 CF-VZSU29U \u00b7 CF-VZSU29R \u00b7 CF-VZSU65U \u00b7 6140-01-540-6513 (NSN) \u00b7 BL-5823 \u00b7 CS-CRF5NB (BTI variant) \u00b7 CFVZSU29<\/p>\n

\u0627\u0644\u0637\u0631\u0627\u0632\u0627\u062a \u0627\u0644\u0645\u062a\u0648\u0627\u0641\u0642\u0629 \u0627\u0644\u062a\u064a \u062a\u0645 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646\u0647\u0627:<\/strong><\/p>\n

\n
\n\n\n\n\n\n\n\n
\u0645\u0633\u0644\u0633\u0644<\/th>\nSpecific Variants<\/th>\n<\/tr>\n<\/thead>\n
Panasonic Toughbook CF-29<\/td>\nCF-29, CF-29A, CF-29E, CF-29DC1AXS, CF-29FC1AXS, CF-29FC9AXS, CF-29JC1AXS, CF-29JC9AXS, CF-29LW1AXS<\/td>\n<\/tr>\n
Panasonic Toughbook CF-51<\/td>\nCF-51 (all variants)<\/td>\n<\/tr>\n
Panasonic Toughbook CF-52<\/td>\nCF-52, CF-52CCABXBM, CF-52EW1AAS, CF-52EW1AJS, CF-52MW1ADS, CF-52MW1APS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u26a0\ufe0f Not compatible with CF-30 or CF-31<\/strong> \u2014 those platforms use the CF-VZSU46 \/ CF-VZSU71U battery family. The P\/N naming is visually similar to the untrained eye but the connectors, voltage profiles, and physical dimensions are different. Confirm the original battery P\/N label before placing any volume order.<\/p>","protected":false},"excerpt":{"rendered":"

    \n
  • \n

    Part Numbers:<\/strong> CF-VZSU29 \/ CF-VZSU29A \/ CF-VZSU29AS \/ CF-VZSU29ASU \/ CF-VZSU29AU \/ CF-VZSU29U \/ CF-VZSU29R \/ CF-VZSU65U \/ NSN 6140-01-540-6513 \u2014 84Wh \/ 11.1V \/ 9-Cell Li-ion \/ 7,800mAh<\/p>\n<\/li>\n

  • \n

    Verified Compatibility:<\/strong> Panasonic Toughbook CF-29 (all variants), CF-51, CF-52 \u2014 fully rugged legacy platform; not compatible<\/strong> with CF-30 or CF-31 (those use the CF-VZSU46 family)<\/p>\n<\/li>\n

  • \n

    Government Procurement Ready:<\/strong> NSN 6140-01-540-6513 cross-referenced; documentation packages available for DLA\/GSA procurement submissions<\/p>\n<\/li>\n

  • \n

    Factory Direct Supply:<\/strong> Small-batch legacy spare parts supply accepted \u2014 suited for government IT sustainment contracts, defense depot operators, and specialist rugged device distributors<\/p>\n<\/li>\n

  • \n

    \u0636\u0645\u0627\u0646 \u0627\u0644\u062c\u0648\u062f\u0629:<\/strong> 12-month warranty; \u226595% of rated 84Wh verified pre-shipment; full electrical test report with sample orders<\/p>\n<\/li>\n<\/ul>","protected":false},"featured_media":12840,"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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