Skip to content
TRUSTED BY OVER 1 MILLION AUSSIES | FREE SHIPPING $70+
TRUSTED BY 1 MILLION+ AUSSIES | FREE SHIPPING $70+

Country

High Drain 18650 Li-Ion Battery 2500mAh 20A 3.6V – Flat Top Replacement for Power Tools & LED Torches

SKU 18650 HighDrain 20A
Original price $19.95 - Original price $19.95
Original price
$19.95
$19.95 - $19.95
Current price $19.95

Gold Standard in Batteries

Fast-charging, fire-resistant and UL Standard certified. Read Why BatteryMate?

Longer Run Time

Our batteries last up to 60%* longer than the competition.

Same Day Dispatch & 1-2 Day Delivery*

Delivers in 1-2 days to SYD, MEL, BRI & ADL or 2-5 days in other areas.

We do not ship batteries internationally.

Free Shipping Over $70

This after-market replacement 18650 Li-Ion rechargeable battery (2500mAh, 3.6V, 20A) is engineered for high-drain devices that demand reliable, consistent power. Commonly used in LED torches, power tools, portable fans, and DIY electronics, it delivers strong performance with a 20A maximum continuous discharge.

Designed as a flat-top cell, it ensures compatibility with a wide range of devices requiring high-drain lithium-ion power. Built to match Samsung INR18650-25RM specifications, this replacement battery supports rapid charging up to 4000mA while maintaining stable output.

Choose this dependable high-drain 18650 replacement battery to power demanding tools and electronics safely and efficiently.

FAQs

Q1: What devices can this high-drain 18650 replacement battery power?
It is ideal for LED torches, power tools, portable fans, and other high-drain electronics.

Q2: Is this battery rechargeable?
Yes, it is a lithium-ion rechargeable replacement cell with 2500mAh capacity.

Q3: What is the discharge rating?
It supports up to 20A continuous discharge, making it suitable for high-power applications.

Q4: Does this 18650 replacement battery come protected?
No, it is unprotected (flat top)—best used in devices with built-in battery protection circuits.

  • Free Shipping on all Australian orders over $70.
  • $5.95 flat shipping fee for Australian orders under $70.
  • Order before 2pm and we promise to dispatch on Same Day !
  • Delivery Time :
  1. Syd, Mel, Bri, Adl - 1-2 Days
  2. Rest of Australia - 2-5 Days

_______________________________

  • 1 Year Warranty on all products
  • Join PlatinumClub for $2.95/month and get extended 3 year warranty on all purchases

If you feel your product has failed a Consumer Guarantee (as defined by Australian Consumer Law), you can:

  • Return it for a full refund.
  • Request a replacement product (return may be required)

Change of Mind Returns:

If you change your mind about a product you purchased, you can return it within 90 days for a flat return shipping fee of $6.95.

BatteryMate vs Others

We power more than just devices — we power confidence. BatteryMate batteries are designed with reliability, longevity, and safety in mind, unlike many alternatives.

Long lasting batteries

Australian stock

Leak-proof guarantee

Compatible with OEM standards

Why BatteryMate?

BatteryMate

Others

Longer Run Time

OEM Compatibility

Leak-Proof Design

Tested for Safety

Eco-Friendly

Works in Extreme Temps

Australian Stock

Why BatteryMate?
Untitled_design_59_676x338.webp__PID:df73a8ef-ddd8-458f-a6ba-0bfa70b2cec2

Why shop with BatteryMate?

  • Premium quality products that meet Australian Safety standards
  • Trusted by over 1 million Australians nationwide
  • 12-month Australian warranty with local customer service
  • We don't compete on price - we deliver on quality and reliability
Untitled_design_58_676x338.webp__PID:73a8efdd-d805-4fa6-ba0b-fa70b2cec26e

Extra Speedy 1-2 day delivery

  • Lightning fast delivery to Sydney, Melbourne, Brisbane & Adelaide
  • Advacned warehouse automation for same-day dispatch
  • Secure packaging to ensure your products arrive in perfect condition
  • Free shipping on orders over $70 Australia-wide

Australian Standards

AS/NZS certified quality

12 Month Warranty

Full Australian protection

Local Support

1300 189 667

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare