Husqvarna 115H 2020 18V Li-ion Replacement Battery 2500mAh
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Husqvarna 115H 2020 18V Li-ion Replacement Battery 2500mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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.
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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.
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Husqvarna 115H 2020 18V Li-ion Replacement Battery 2500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
18V
Amp
2500mAh
Husqvarna 115H 2020 — 18V Li-ion Replacement Battery (584 84 28-02)
This is an 18V 2500mAh Li-ion battery for the Husqvarna 115H 2020 cordless hedge trimmer and compatible models in the 305, 310, and 315 2020 series. It replaces OEM part 584 84 28-02 and cross-references across more than 30 Husqvarna part numbers. Voltage and form factor match the original pack exactly.
- 115H, 305, 310 and 315 2020 series: These models share the same 18V battery rail, connector pinout, and BMS handshake protocol. One pack covers the full range — no adapter or firmware change needed.
- Bench tested on actual hardware: We ran this pack through a full charge-discharge cycle on the 115H platform. The BMS communicated correctly with the charger, accepted a full charge without fault codes, and delivered consistent voltage under simulated blade load.
- Seasonal start-up care: Before the first cut of the season, bring the battery indoors overnight if temperatures are below 10°C. Cold Li-ion cells carry higher internal resistance, and the blade motor's inrush current can trip the BMS on a cold pack before it even starts cutting.
BMS cutoff during thick or wet hedge cutting
Dense branches and wet growth force the blade motor to draw significantly more current than normal cutting load. If that spike exceeds the BMS current threshold, the pack shuts down as a protection response — not a fault. The battery resets once it cools. Keeping the blade clean and moving at a consistent pace reduces the load spikes that trigger this cutoff.
Charger rejecting the pack after sitting unused all winter
Li-ion cells self-discharge over months of storage. If the pack drops below roughly 2.5V per cell, most chargers will refuse to accept it — the charger reads the voltage as outside the safe charge window and shows a fault light. Some chargers include a recovery or "wake-up" mode that applies a low-current trickle to bring the cells back into range. If yours does not, measure cell voltage with a multimeter — individual cells above 2.0V can often be recovered; below that, replacement is the safer call.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Husqvarna
- 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 Husqvarna 115H cuts out halfway through a thick hedge, then starts again after a minute — what's causing that?
That's thermal protection triggering, not a faulty battery. The blade motor draws heavy current through dense growth, and when the pack's internal temperature hits the BMS cutoff threshold, it shuts down to protect the cells. The one-minute recovery time is the pack cooling enough to reset. Give it a full five-minute rest before cutting again, and work in shorter passes through dense sections to keep the load from spiking.
The new battery feels noticeably warmer than my old one after the first few charges — is something wrong?
Nothing is wrong. New Li-ion cells run warmer during the first three to five cycles while the chemistry stabilises and the BMS calibrates its charge curves. We measured this on the bench — surface temperature drops to normal range after the initial conditioning cycles. If the pack is still running hot after five full charge-discharge cycles, check that the battery contacts on the trimmer are clean and seating fully.
My 115H starts sluggishly on a cold morning and the power feels weak for the first few minutes — is the battery faulty?
It's not a fault — it's a known Li-ion behaviour below 10°C. Cold cells have higher internal resistance, which reduces the current they can deliver on demand. The blade motor's start-up inrush hits a restricted cell and the trimmer feels underpowered until the pack warms slightly through use. Bring the battery indoors for at least an hour before cutting on cold mornings, and the cold-start sluggishness will be gone.
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