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Black rectangular lithium-ion laptop battery with six cells

myVolts

myVolts 48Wh 10.8V 6-cell laptop battery for Lenovo ThinkPad E430 E530 B590

SKU CH-DMTA-2QEXT

A 48 Wh, 10.8 V, 6-cell lithium-ion replacement battery for Lenovo ThinkPad E and B series laptops

  • 48Wh capacity powers ThinkPad E430, E530, B590 and listed models
  • 8V 6-cell Li-ion chemistry delivers up to 500 recharge cycles
  • Replaces Lenovo part numbers 0A36311, 45N1048, 45N1049, 45N1043, 45N1042
  • Compatible with IdeaPad Y480, Y580, V480, V580 series laptops
  • Does not fit E420, E425, E520, E525, Edge 14, Edge 15, L510

Compatible ThinkPad battery replacement

This 6-cell lithium-ion battery replaces Lenovo part numbers 45N1048, 45N1049, 45N1043 and 45N1042. It fits ThinkPad E-Series models E430, E431, E435, E440, E445, E530, E531, E535, E540 and E545 as well as the B590. The pack delivers 48Wh at 10.8V and is supplied new from the manufacturer.

Thermal and power behaviour in daily use

Lithium-ion chemistry keeps self-discharge low during typical office workloads such as web browsing and document editing. The battery operates at its rated 10.8V without generating noticeable heat inside the chassis. Normal charging cycles follow the laptop's built-in power management without drawing excessive current from the adapter.

Sustained-load capacity and cycle life

Under continuous load the 48Wh capacity provides runtime proportional to the system's power draw, with the manufacturer rating the pack for up to 500 recharge cycles over its service life. Voltage remains stable at 10.8V until the protection circuit triggers shutdown. Buyers needing longer unplugged sessions should consider higher-capacity alternatives.

How it compares

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

Price $43.99
Pricier than about 76% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install this 6-cell 10.8V battery in my ThinkPad E430, and which step causes the most returns?

Power off the laptop, unplug the AC adapter, slide the old pack out by releasing both latches, then press the new 48Wh unit in until both latches click; the step buyers miss is fully seating the second latch, which leaves the battery loose and unrecognised.

What maintenance or replacement will this Li-ion 48Wh pack need over its life?

The pack is rated for up to 500 recharge cycles; after that capacity drops noticeably, so plan on a replacement battery once runtime falls below your needs.

What limit appears first when I run this 10.8V battery continuously under heavy load?

Sustained high draw hits the 48Wh capacity ceiling first, giving shorter runtime before the pack needs recharging.

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