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
Rectangular silver Ni-MH battery pack 143.0 x 62.0 x 21.0mm with label showing 12.0V 1800mAh

Estry

Estry CV-B800 12.0V 1800mAh standard battery

SKU CH-VHD4-D3H37 MPN CV-B800

12.0V 1800mAh Ni-MH replacement battery for Marantz CV-B800 with overcharge and short-circuit protection

  • Specifications12
  • Battery Pack1 Year
  • Exact-match replacement for Marantz CV-B800
  • 0 V, 1800 mAh Ni-MH delivers 21.6 Wh capacity
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 143.0 × 62.0 × 21.0 mm pack weighs 540.0 g

Direct Replacement Battery

The Estry CV-B800 is a nickel-metal hydride battery pack rated at 12.0V and 1800mAh. It matches the original specifications for the Marantz CV-B800 model. The pack measures 143.0 x 62.0 x 21.0mm and weighs 540.0g.

Built-In Protection Circuitry

Integrated safeguards guard against overcharge, over-discharge, over-voltage and short-circuit conditions. These features help preserve cell health and support safer operation over the rated one-year battery pack life. RoHS, CE, ISO9001, UN38.3 and MSDS certifications confirm compliance.

Ni-MH Chemistry Limits

The 21.6Wh capacity suits low-drain applications but cannot match the energy density of lithium-based packs. Self-discharge is higher than modern alternatives, so stored units lose charge faster. The 12.0V nominal output is fixed and not adjustable for other voltage requirements.

Highlights

  • Exact-match replacement for Marantz CV-B800
  • 0 V, 1800 mAh Ni-MH delivers 21.6 Wh capacity
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 143.0 × 62.0 × 21.0 mm pack weighs 540.0 g

Specifications

BrandNi-MH
Model1800mAh
Specifications12
Battery Pack1 Year

Questions about this item

When will the Ni-MH cells in this 1800mAh pack need replacing?

The manufacturer rates the battery pack for one year of service life under normal use.

What limits runtime first when the 12.0V pack runs continuously?

The 1800mAh capacity determines how long the pack powers the device before recharge is required.

How much heat or power draw should I expect from this 21.6Wh battery during all-day use?

The pack weighs 540.0g and measures 143.0 x 62.0 x 21.0mm; it meets RoHS, CE, ISO9001, UN38.3 and MSDS standards for safe thermal behaviour.

Also in this aisle

People compared these

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