We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Flat rectangular lithium-polymer battery pack, matte black finish, 340.8 by 74.6 by 8.5 mm

Estry

Estry standard battery 5800mAh 11.4V for Razer Blade 14 2016 2017

SKU CH-K34M-4QBR3

Replacement lithium-polymer battery delivers 5800mAh at 11.4V for Razer Blade 14 models from 2016 and 2017

  • TypeRechargeable Batteries
  • Battery Capacity5000mAh
  • Battery Voltage11.4
  • Compatible with Razer Blade 14-inch 2016 and 2017 models
  • 5800mAh capacity at 11.4V delivers 66.12Wh of power
  • Li-Polymer cell with overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Slim 8.5mm profile fits the original battery bay exactly

Replacement battery for Razer Blade 14 2016 2017

This 11.4 V lithium-polymer pack is built to the original specifications for the Razer Blade 14 inch models from 2016 and 2017. It targets owners whose factory cell has lost capacity and who want a direct swap without modifying the chassis. The 5800 mAh rating delivers 66.12 Wh of energy for typical daily workloads.

Protection circuitry and certifications

Integrated overcharge, over-discharge, over-voltage and short-circuit guards are designed to extend cycle life and prevent damage during abnormal conditions. The unit carries ISO9001, RoHS, CE, UN38.3 and MSDS certificates, confirming compliance with common safety and environmental standards. No additional software or drivers are bundled with the battery.

Installation notes and common pitfalls

The pack measures 340.8 x 74.6 x 8.5 mm and weighs 555.8 g, matching the original form factor for a screw-in fit. Buyers must verify their exact model number — such as RZ09-01953E72-R3U1 or CN-B-1-BETTY4-65E-01895 — against the long compatibility list before ordering. Mismatched part numbers are the main reason a unit will not seat or charge correctly. This battery is not for users needing a higher-capacity design or a different voltage platform.

Highlights

  • Compatible with Razer Blade 14-inch 2016 and 2017 models
  • 5800mAh capacity at 11.4V delivers 66.12Wh of power
  • Li-Polymer cell with overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Slim 8.5mm profile fits the original battery bay exactly

Specifications

BrandRazer
TypeRechargeable Batteries
Battery Capacity5000mAh
Battery Voltage11.4

Questions about this item

Will the Li-Polymer cells need replacement after a certain number of charge cycles?

The battery uses Li-Polymer chemistry rated at 5800mAh and 66.12Wh; typical cycle life for this chemistry is several hundred full cycles before capacity drops noticeably.

What is the first limit reached during sustained heavy use — thermal throttling or voltage drop?

The pack includes over-voltage, over-discharge and short-circuit protection that will cut power before cells overheat, so the protection circuit is the first limit encountered.

How much heat does the 340.8 x 74.6 x 8.5 mm pack generate when the laptop runs all day?

Normal operation keeps the battery near ambient temperature; the built-in protection circuits prevent excessive heat during continuous discharge at 11.4V.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.