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Surron Bikes & Parts
SURRON BIKES & PARTS
Talaria Battery 72v 2900WH 40Ah Medium Power 15Kw Full Screen
Tracked Ground Freight
2 Years Limited Warranty
30-Day Hassle-Free Returns
Spare Parts

Talaria Battery 72v 2900WH 40Ah Medium Power 15Kw

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SKU: SR-TALARIA-BA-9858
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Brand: Talaria
$1328.57

Tough Protective 316 Stainless Steel Case

In Stock
Performance Highlights
Motor Output: 15Kw 2900Wh
Battery Spec: 72V 40AH

Product Overview

Talaria Battery 72v 40Ah
Medium Power 15Kw 2900Wh
Tough Protective 316 Stainless Steel Case
Only 16.5Kg
Fully Protected BMS
*UK Warranty
Power: Medium High
Range: High
Height: Low (350mm)
Battery Activation Required On Delivery
On delivery, please send us a request to have your battery activated.
This will also be regarded as confirmation that your battery has been received.
Talaria Battery 72v 40Ah Medium High Power 14Kw
Designed to run with an after market controller like the Torp TC500 or KO Nano or any medium power controller that can utilise the extra RPM from the higher voltage. This creates more top speed and if you are using a bigger rear sprocket you can turn the extra RPM into torque. Expect top speeds of around 70mph (example is a 12 stone rider using an ASI BAC4000, on OEM tyres and a 54T sprocket).
This battery will give you a genuine fast bike that will give heaps of range and fun. Perfect for trail riding when you want a fast and usable light bike.
Power
These batteries are designed to go straight into a standard battery compartment with a small battery lid spacer that we provide.  Power should be set at 200A DC (15Kw) and 500 Phase.
Exoskeleton / Casing
We have upgraded the casing to marine grade 316 stainless steel, so absolutely no rust issues here! Super tough and powder coated inside and out.
Connectors
For the main battery to controller connector we use the same type of plug as used by Talaria, but we use two sets to share “parallel” the power. This reduces heat, transfers load more efficiently and keeps the connectors from overheating.
One direct set of discharge cables goes to the controller via a high capacity QS8 connector using very large 6 AWG cables. This reduces internal resistance and heat build up. A separate second set of discharge cables using the original 8 AWG cable via a Talaria OEM plug connects to the OEM loom via the circuit breaker.
Specifications Talaria Battery
SKI 40Ah
20s Battery
Nominal Voltage: 72V
HVC: 84V
LVC: 59V
Weight 16.5Kg
DC line 165A burst 200A for 30 seconds only
Max Power rating (Discharge): 15,000 Watts
Max Phase Amps: 500A
Height 350mm
BMS monitoring individual series condition with balanced charging
An integrated cord handle for lowering the battery in and out.
Connecting To Bike
When connecting the battery to the bike and to avoid a spark, turn the red trip switch on the bike to off. Connect the older original power cable and then turn the red trip to on. Then connect the new power leads. Removing the battery has no special order.
Battery Charging
First time charging is VERY important. Always connect the charger to the battery with the charger powered up at the mains first. This will stop a “Connection Spark”. The battery needs a “Balance Charge” on first charge. Please charge for 12 hours first time.  Always charge your battery in a safe place and never unsupervised.
Charger NOT Included
This Battery will not work with an original standard Talaria Controller
Bike Not Included

Technical Specifications

BrandTalaria
SKU IdentifierSR-TALARIA-BA-9858
Motor Architecture15Kw 2900Wh
Battery Pack72V 40AH
Warranty Term2 Years Limited Warranty

5.0

Based on 1 verified rider reviews

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Customer Reviews

whistler_rider
Verified Owner
Oct 02, 2026
Genuine OEM factory quality

Exact fit, precision tolerances, and exceptional packaging. Arrived in Alberta in 3 business days via tracked freight.

Surron Freight & Warranty Guarantee

Shipping Policies

E-bikes ship with specialized heavy freight ground carriers in custom reinforced double-walled protective cartons. Delivery typically completes in 3–5 business days. Free shipping applies automatically to all orders over $500.

2-Year Limited Warranty

Surron electric bikes carry an extensive 2-year warranty covering frame integrity, motor internals, and electronic controllers against manufacturing defects. Battery packs are guaranteed to retain at least 70% capacity through 500 charge cycles.

Component Synergies

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