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 Ni-MH battery pack, green label, two wire leads

Estry

Estry OL5800 standard battery 3.6V 700mAh

SKU CH-4ADR-9ZEVZ MPN OL5800

Ni-MH 3.6 V 700 mAh replacement battery compatible with Olympia OL5800, OL5810, OL5815, OL5870 and related cordless phone models

  • Battery pack size1 Year
  • Details3.6
  • Exact-fit replacement for Olympia cordless phones
  • 6 V 700 mAh Ni-MH delivers 2.52 Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Compact 45.6 x 31.3 x 10.6 mm size fits original compartment
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Compatible Ni-MH replacement battery

This Estry OL5800 battery replaces the original power cell in a wide range of Olympia cordless phones and VOIP handsets including the OL5800, OL5810, OL5815, OL5870, OL2400, OL2410, OL2420, OL2430, OL2490, OL2499, OL3020 and RTX3045 models. It delivers the same 3.6V voltage and 700mAh capacity as the factory pack. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits for safer daily use.

Suits owners of listed Olympia handsets

Users whose handset model appears in the compatibility list above can install this pack directly. Buyers with a different model number or a phone that requires a higher capacity pack should look elsewhere. The physical size is fixed at 45.6 x 31.3 x 10.6mm and cannot be altered to fit other battery compartments. No other chemistries or form factors are offered under this part number.

Key specification is 3.6V 700mAh Ni-MH chemistry

The single figure that decides fitment is the 3.6V 700mAh nickel-metal-hydride rating; any device needing a different voltage, capacity or lithium chemistry will not work with this pack. The cell measures 45.6 x 31.3 x 10.6mm and weighs 61.0g, matching the original dimensions exactly. Certifications include ISO9001, RoHS, CE, UN38.3 and MSDS for regulatory compliance.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Product
Brand nameNi-MH
Model name700 mAh
In the box
Battery pack size1 Year

Questions about this item

Does the OL5800 pack ship with a charger or do I need to buy one separately?

Only the 3.6V 700mAh Ni-MH battery pack is included; no charger, cables or mounting hardware are supplied.

My handset shows part number OL-2430 — is this the correct replacement?

Yes, the pack is listed as compatible with OL-2430 and every other model in the OL2400, OL2410, OL2420, OL2490, OL2499, OL3020, OL5800, OL5810, OL5815, OL5870 and RTX3045 VOIP-Skype ranges.

What does the 700mAh rating mean for daily talk time on an OL5800 phone?

At 3.6V and 2.52Wh the cell delivers roughly the same capacity as the original pack, so expect comparable talk and standby duration under normal use.

More in Household Batteries & Chargers

Similar items