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GreenWorks Pro 80V Replacement Battery 2901302 2000mAh Li-ion

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From $68.99 USD $84.99
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Fits GreenWorks Pro 80V lawn mowers and compatible cordless tools, replacing OEM part numbers 2901302, GBA80200, GBA80250, GBA80400, GBA80500, and G80B4.
80V, 2000mAh capacity delivers sustained power through dense grass and mulching cycles without mid-row cutoff.
Slide-on connector seats flush into the tool battery slot with a positive lock tab — no wobble, consistent contact on every mount.
We bench-tested this cell through five conditioning cycles on a GCS80420 mower under blade load; BMS held stable through thick-grass engagement without nuisance trips.
Before first use each season, bring the battery indoors overnight if outdoor temperature is below 10°C — cold Li-ion has higher internal resistance and blade motor inrush can trigger BMS shutdown on a chilled pack.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

80V

Amp

2000mAh

GreenWorks Pro 80V Series — 80V Li-ion Replacement Battery (2901302)

This is an 80V Li-ion replacement battery rated at 2000mAh (160Wh). It fits the GreenWorks Pro 80V platform, covering mowers, blowers, and string trimmers including the GCS80420, GBL80320, and GLM801600 among 56 additional compatible models. Voltage and connector match the OEM pack — the BMS handshake is compatible with GreenWorks Pro 80V chargers.

  • Pro 80V platform fit: All models in the GreenWorks Pro 80V line share the same 80V rail, battery connector, and BMS communication protocol. One battery moves between mower, blower, and trimmer without adapter or modification.
  • Bench tested on actual hardware: We ran this pack on a GCS80420 deck motor through simulated blade-load cycles. The BMS held stable under inrush current at startup and throttled correctly when cell temperature approached the thermal threshold — no nuisance trips on clean dry grass loads.
  • Seasonal storage tip: Before the first spring mow, bring the battery indoors overnight if garage temperatures are below 10°C. Cold Li-ion cells have elevated internal resistance, and the blade motor's inrush current can trip the BMS on a pack that hasn't warmed to room temperature.

BMS cutoff on thick-grass and wet-grass blade load

The Pro 80V blade motor draws significantly higher inrush current when cutting dense or wet grass compared to dry conditions. If the BMS detects that current draw exceeds its threshold — typically caused by a clogged deck or overgrown patch — it cuts output to protect the cells. This is not a battery fault; it's the protection circuit doing its job. Clear the deck, allow a 60-second reset, then restart the mower at a slower walking pace through the heavy section.

Charger showing fault light after mower sat in garage all winter

Li-ion cells self-discharge over months of storage. If the pack voltage drops below the charger's acceptance threshold — typically around 2.5V per cell — the charger refuses to enter normal charge mode and shows a fault or red indicator. Some GreenWorks Pro 80V chargers include a recovery mode: insert the pack, wait up to 30 minutes, and the charger will attempt a low-current pre-charge to bring cells back above the acceptance floor. If the fault light clears and charging begins, the pack is recovering normally. If it does not clear after 30 minutes, cell voltage has dropped too far for recovery.

Compatible Models

Pro 80V GCS80420 GBL80320 GLM801600 2600402 Pro 80V 20-Inch Cordless Snow Thrower Pro 80V Cordless Brushless Axial Blower 2502202 Pro 21-Inch 80V Push Cordless Lawn Mower BL80L2510 80V Jet Electric Leaf Blower 80V Pro Jet Leaf Blower Pro 80V 20-Inch Cordless Snow Thrower Pro 80V 8" Brushless Edger 80V 145MPH - 580CFM Cordless Backpack Leaf Blower RO 80V 10”Brushless Cordless Polesaw Pro 80V 24-Inch Brushless Hedge Trimmer PRO 80V 10 Inches Brushless Cordless Polesaw PRO 12-Inch 80V Cordless Snow Shovel PRO 21-Inch 80V Self-Propelled Cordless Lawn Mower MO80L00 PRO 26-Inch 80V Cordless Hedge Trimmer GHT80320 RO 80V 10 Inches Brushless Cordless Polesaw PS80L00 Pro GBL80320 80V 125 MPH - 500CFM Cordless Blower BL80L00 2601302 ED80L00 BPB80L00 PRO 80V 10” Brushless Cordless Polesaw PS80L210 HT80L00 2600602 PH80B210 20-Inch 80V Cordless Pole Hedge Trimmer CS80L01 PRO 16-Inch 80V Cordless Chainsaw PRO 16-Inch 80V Cordless String Trimmer GST80320 Pro 80V 18-Inch Cordless Chainsaw 0V 145MPH - 580CFM Cordless Backpack Leaf Blower BPB80L2510 PRO 18-Inch 80V Cordless Chainsaw GCS80450 PRO 80V Cordless Brushless String Trimmer + Leaf Blower Combo STBA80L210 EDA75 80V Cordless String Trimmer PRO 16-Inch 80V Brushless Chainsaw CS80L211 PRO 80V Chainsaw Hard Case HC0A00 GD80BC GD80BCB GD80BL GD80BP GD80BPB GD80CS50 GD80HT GD80LM46SO GD80LM46SP GD80LM51SP GD80LM53 GD80SB GD80ST

Replaces Part Numbers

2901302 GBA80200 GBA80250 GBA80400 GBA80500 G80B4

Technical Specifications

Voltage80V
Amp Hours2000mAh
Capacity2000mAh
Rate160Wh
Net Weight1334g /47.06 oz
Gross Weight1524g /53.76 oz
Approximate Weight1524g /53.76 oz
Dimension 170.70 x 118.60 x 83.00mm

Product Highlights

  • Brand: GreenWorks
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My GreenWorks Pro 80V mower cuts out halfway through a row, then starts again after a minute — is the battery failing?

This is thermal protection activating, not cell failure. The blade motor generates sustained heat under continuous load, and the BMS trips output when internal cell temperature hits the cutoff threshold. Allow a 5-minute cooldown with the battery removed from the mower so airflow can reach the pack. If it happens consistently after 5 cycles of use, check whether the deck is partially clogged — restricted airflow across the blade forces the motor to draw more current and heats the pack faster.

The new battery feels noticeably warmer than my old one during the first few charges — is something wrong?

Nothing is wrong. New Li-ion cells run slightly warmer during the first 3 to 5 cycles while the electrodes condition and internal resistance settles. We measured surface temperature on this pack during bench cycling — it peaks within normal range and drops to match a broken-in pack by cycle 5. If the pack is too hot to touch or the charger faults out, that's a different issue; normal conditioning warmth is firm-warm, not burning.

My GreenWorks Pro 80V mower starts sluggishly on the first cold morning of spring even with a fully charged battery — why?

Li-ion capacity drops measurably below 10°C because cold cells have higher internal resistance, which limits how much current they can deliver on demand. The blade motor's startup inrush hits a restricted pack and the mower feels underpowered or hesitates. Store the battery indoors the night before a cold-morning mow and insert it just before use — a pack at 18–20°C will deliver full rated current from the first pull of the trigger.

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