Dongcheng 12V 2.0Ah Battery Pack - LB1220-4

• Manufacturer: Jiangsu Dongcheng M&E Tools Co., Ltd.
• Model: LB1220-4
• Voltage: 12 V
• Capacity: 2.0 Ah
• Chemistry: Lithium-ion
• Rated Cycle Life: Approximately 400 charge cycles
• Type: Replacement / spare battery pack
• Compatibility: Dongcheng 12 V cordless tool platform

Dongcheng 12V 2.0Ah Battery Pack (LB1220-4) is a lithium-ion replacement pack for Dongcheng's 12 V cordless tool platform. Buying a second pack is the difference between working continuously and standing around waiting for a charger — one on the tool, one on charge, swap when it fades.

Lithium-ion holds its voltage through most of the discharge, so the tool keeps close to full power until the pack is genuinely empty rather than tailing off gradually. There's no memory effect, so you can top up a partly used pack without harming it, and self-discharge is low enough that a charged pack left in the van will still have useful charge weeks later. Rated life is around 400 charge cycles.

Technical Specifications

Usage and Safety Guidelines

1) Will this fit my Dongcheng cordless tool?

It fits tools on the Dongcheng 12 V platform. Battery fitments are not universal even within a brand, so check your tool's model number and existing pack against this one before ordering — if you're unsure, contact us with the tool model and we'll confirm.

2) What does 2.0Ah mean for runtime?

Amp-hours measure stored energy: a 2.0 Ah pack runs roughly twice as long as a 1.0 Ah pack on the same tool. It does not make the tool more powerful — that's set by voltage and the tool's motor.

3) Does this come with a charger?

Check the Technical Specifications table above for this listing. Spare battery packs are commonly sold as the battery alone, on the basis that you already own the charger.

4) How long will the battery last before it needs replacing?

Rated at approximately 400 charge cycles. Real life depends heavily on how it's treated — heat is the main enemy, so avoid leaving packs in hot vehicles or charging them immediately after heavy use while still warm.

5) Can I leave it on charge all the time?

Better not to. Remove the pack once charged rather than leaving it on the charger indefinitely, and for long storage keep it at partial charge rather than full or flat — both extremes shorten lithium-ion life.

1. Return within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
2. Product cannot be returned once installed or used
3. Refer to Refund Policy for complete details