The 00UR891 compatible battery is an internal replacement laptop battery for selected Lenovo ThinkPad models, mainly the Lenovo ThinkPad T570, that use the 00UR891 / 01AV493 internal battery family.

This battery is mainly listed for the Lenovo ThinkPad T570. It should only be purchased after checking that your original internal battery part number matches the 00UR891 / 01AV493 battery family.

This battery is best used for replacing a worn or faulty ThinkPad T570 internal battery that drains quickly, no longer holds useful charge, shows poor battery health, or causes the laptop to rely too much on the external rear battery or AC charger.

This product is listed on Memox as SKU and MPN 00UR891-BTI. The UPC listed for this product is 5059902176011.

No. This is a compatible replacement battery, not an original Lenovo-branded battery. It is designed as a replacement option for compatible ThinkPad T570 systems using the matching internal battery part family.

This battery is commonly cross-referenced with 00UR891, 00UR890, 00UR892, 01AV493, SB10L84121, SB10L84122 and SB10L84123. Always compare the label on your original internal battery before ordering.

00UR891 and 01AV493 are commonly listed as part of the same ThinkPad T570 internal battery family. Because Lenovo batteries can have multiple FRU and ASM references, matching the printed battery label is the safest method.

This is the internal built-in battery. It is not the removable rear ThinkPad Battery 61 pack that slides onto the back of the laptop.

The internal battery is fitted inside the laptop under the base cover. The rear external battery is removable from the outside. The ThinkPad T570 can use both together for longer battery life on compatible configurations.

Yes. The ThinkPad T570 was designed with Lenovo’s dual-battery concept, often called Power Bridge, using an internal battery plus a removable rear battery on supported configurations.

Some ThinkPad T570 systems can run from the internal battery alone, but runtime will be lower than using both the internal battery and a charged rear external battery. Exact behaviour depends on battery health and system condition.

Yes, many users can run the T570 from the rear removable battery, but the internal battery is useful for bridge power, hot-swapping and extra runtime. If the internal battery is dead, the Power Bridge experience may be affected.

This product is positioned as a 32Wh 4-cell internal replacement battery for the ThinkPad T570 battery family. Match the part number and 32Wh internal battery specification before purchase.

00UR891-style internal batteries are commonly listed around 15.2V to 15.28V depending on the label or supplier listing. The most important check is matching the correct FRU/part number and physical connector.

The 00UR891 internal ThinkPad T570 battery family is commonly listed as a 32Wh 4-cell internal battery. If you see 84Wh or 6-cell information on a listing, treat it as a possible data-feed error and match the original battery label before buying.

This product should be treated as a 4-cell internal replacement battery for the 00UR891 / 01AV493 family. The removable rear battery options for the ThinkPad T570 are separate products.

00UR891 / 01AV493 batteries are often referenced for ThinkPad T580 as well, but this product page is focused on the ThinkPad T570. For T580, only buy if your original internal battery part number and connector match exactly.

It may be listed by some suppliers for ThinkPad P51s, but you should not rely on model name alone. Check the original internal battery FRU, voltage, shape and connector before ordering.

Some 00UR891 / 01AV493 listings also mention ThinkPad P52s, but compatibility must be confirmed against the original battery part number. If your old battery does not match, do not assume it will fit.

Do not buy this battery for T470 or T480 based only on similar ThinkPad naming. Those models can use different internal batteries. Always match the exact original FRU and physical battery design.

Check the laptop model, remove the base cover safely if needed, and compare the part number printed on the original internal battery. Look for 00UR891, 01AV493 or the matching SB10L84121 / SB10L84122 / SB10L84123 references.

The part number is usually printed on the battery label inside the laptop. Because this is an internal battery, the base cover must normally be removed to read the label safely.

Lenovo Vantage may show battery details and health information, but the most reliable check is still the physical label on the original battery, especially when buying a replacement internal battery.

Yes. Lenovo’s replacement guidance says to disable the built-in battery before working on internal components. On ThinkPad systems, this is usually done in BIOS under Config > Power > Disable built-in battery.

Restart the laptop, press F1 at the Lenovo logo to enter ThinkPad Setup, go to Config, then Power, then choose Disable built-in battery. The laptop should power off. Disconnect AC power before opening the laptop.

Yes. Before opening the laptop, shut it down, disconnect the AC adapter and remove the removable rear battery if fitted. This reduces the risk of short circuits while working inside the system.

It may be possible if you are confident with laptop repairs, but internal battery replacement requires opening the base cover and disconnecting the battery cable. If unsure, use a qualified technician.

You normally need a suitable small screwdriver and a plastic pry tool to remove the base cover safely. Avoid metal tools around the battery connector where possible.

Disable the built-in battery in BIOS, shut down, unplug AC power, remove the rear battery, remove the base cover, disconnect the old internal battery, remove the screws, install the new battery, reconnect it, reassemble the laptop and then connect the charger.

If the laptop is stable and charging, updating BIOS before replacement can sometimes help power management. Only update BIOS using Lenovo’s official instructions and ensure the laptop has reliable power during the update.

This can happen if the battery is incompatible, the wrong FRU was installed, the battery controller is not recognised, the BIOS rejects it, or the battery is faulty. Recheck the part number and connector before further troubleshooting.

Possible causes include an incompatible battery, poor connector seating, old BIOS, battery protection mode, faulty charger, damaged charging port, rear battery conflict or a system-board charging issue. Check Lenovo Vantage and BIOS battery status.

This may happen if the battery is already near full, charging thresholds are enabled, the charger is not powerful enough, the connector is not seated correctly, the BIOS needs updating, or the replacement battery is not being accepted by the system.

Battery not detected can be caused by a loose battery cable, incompatible battery, battery controller fault, BIOS issue, system-board fault or the internal battery being disabled. Recheck installation and reconnect AC power after reassembly.

After disabling the built-in battery, the laptop normally needs external AC power to wake again. Connect the correct charger, wait a few seconds and then power on. If it still does not start, recheck the battery connection and charger.

Power Bridge is Lenovo’s dual-battery system that allows the internal battery and removable rear battery to work together. It can help extend runtime and allow rear battery swapping on supported systems.

This can happen if the internal battery is faulty, disabled, not charging, not detected, or if there is a firmware or power-management issue. It can also be related to the external battery or system-board power circuitry.

It may fix Power Bridge problems if the internal battery is the cause. If the issue is caused by BIOS, the external battery, charging thresholds, firmware or the system board, replacing the internal battery alone may not solve it.

Runtime varies significantly depending on screen brightness, CPU load, battery age, Windows power mode, Wi-Fi use, background apps and whether a rear battery is also installed. A 32Wh internal battery alone gives less runtime than using internal plus rear battery together.

It can improve runtime if your old internal battery is worn out, but it cannot guarantee factory-new runtime because the laptop’s age, external battery health, software load and power settings also affect battery life.

Yes, battery calibration can help the laptop estimate charge level more accurately. Fully charge the battery, use it normally, then perform a controlled discharge and recharge cycle if the battery percentage seems inaccurate.

Lenovo Vantage can help check battery health, charging thresholds and power settings. Some third-party or compatible batteries may report information differently from original Lenovo batteries.

Charge thresholds can help battery longevity if the laptop is often plugged in. For example, limiting charging below 100% may reduce long-term battery wear, depending on your usage pattern.

Yes. A weak charger, faulty USB-C or slim-tip adapter, damaged charging port or underpowered power supply can cause charging problems that look like a bad battery. Check the charger before assuming the battery is faulty.

If the rear battery is also old or weak, replacing only the internal battery may not restore full runtime. Many ThinkPad T570 users get best battery life when both the internal and removable rear battery are healthy.

Yes. It is suitable for refurbishers, repair shops, IT departments and users restoring compatible ThinkPad T570 laptops where the internal 00UR891 / 01AV493 battery is worn or missing.

No. Stop using the laptop on that battery if it is swollen, leaking, damaged or producing unusual heat. Do not puncture, press, bend or continue charging a swollen battery. Professional removal is recommended.

Check your exact ThinkPad model, original battery FRU, 32Wh internal battery requirement, connector shape, voltage label, installation confidence, charger condition and whether your rear external battery also needs replacement.

This battery is not suitable for users with non-compatible Lenovo laptops, ThinkPad models using a different internal battery, users needing the removable rear Battery 61 pack, users wanting an original Lenovo-branded battery, or anyone unable to safely open the laptop. It is best for compatible ThinkPad T570 systems using the 00UR891 / 01AV493 internal battery family.

Buying the 00UR891 Compatible 32Wh 4-Cell Battery for ThinkPad T570 from Memox is a practical choice if you need to restore dependable portable use to a compatible Lenovo ThinkPad laptop. Memox offers laptop batteries, chargers, SSDs, RAM, storage products, networking equipment, PC components, cables and computer accessories for UK customers.