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Rectangular lithium battery pack, 102 by 97.6 by 3.0 mm, dark finish

Estry

Estry ONA19TB002 standard battery 3000mAh 3.7V

SKU CH-ZYGS-S01H8 MPN ONA19TB002

Replacement lithium battery delivers 3000mAh at 3.7V for ONN ONA19TB002 and 100005207 tablets, matching original specifications with overcharge, over-discharge.

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity3,000 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • Exact-fit replacement for ONN ONA19TB002 tablets
  • 3000 mAh lithium cell delivers 12.58 Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE and UN 38.3 standards
  • Slim 102.0 × 97.6 × 3.0 mm profile weighs 97.5 g

Replacement battery for ONN Tablet 8

This lithium cell replaces the original YB2798103 pack in ONN ONA19TB002 and 100005207 tablets. It delivers 3000mAh at 3.7V and is built to the same electrical specification as the factory unit. The 1-pack format suits owners who need a single, direct swap without extra accessories.

Installation notes and common issues

The cell measures 102.0 x 97.6 x 3.0mm and weighs 97.5g, matching the cavity and connector layout of the listed models. No soldering is required; the pack plugs into the existing header. The main risk is ordering the wrong part — verify the tablet model and the YB2798103 part number before purchase.

Practical limits of the lithium chemistry

Rated at 3400mAh and 12.58Wh, the battery provides typical single-cell runtime for an 8-inch tablet. Capacity will decline with charge cycles and deep discharge, so avoid leaving the device at zero for long periods. The pack carries ISO9001, RoHS, CE, UN38.3 and MSDS certification for transport and safety compliance.

How it compares

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

Price $16.99
Pricier than about 72% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameONN
Product typeBatteries
Power
Battery typeLithium
Battery capacity3,000 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

How can I confirm the Estry ONA19TB002 is working correctly after installing it in my tablet?

After installation, the tablet should power on normally and report a capacity near 3400mAh or 12.58Wh in the battery settings, matching the replacement specifications.

What comes in the box with the Estry ONA19TB002 and is anything else required for installation?

The package contains one lithium battery pack weighing 97.5g with dimensions 102.0 x 97.6 x 3.0mm; no extra parts are needed if your tablet uses the YB2798103 connector.

Which capacity version of the Estry ONA19TB002 should I choose for the ONN Tablet 8?

This model is supplied as a single 3.7V 3400mAh (12.58Wh) replacement that matches the original ONA19TB002 and 100005207 part numbers.

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