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Talaria Battery 81.4v 22s 4026Wh 50Ah THOR V2 45Kw + Charger Full Screen
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Talaria Battery 81.4v 22s 4026Wh 50Ah THOR V2 45Kw + Charger

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SKU: SR-TALARIA-BA-7780
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Brand: Talaria
$2076.36
$2408.71
SAVE 13%

Talaria Battery 81.4v 22s 4026Wh

In Stock
Performance Highlights
Motor Output: 45Kw
Battery Spec: 81.4V 76Ah Premium Lithium

Product Overview

Talaria Battery 81.4v 22s 4026Wh
THOR V2
45Kw
EBMX, VTB, Torp & Nuclar Compatible
The
Thor
81.4v
use the
Hammer
to hit the Power
High Power Long Range 4026Wh
Molicel P45b 21700 Cylindrical Cells
Tough Protective 316 Stainless Steel Case
Fully Protected 220A/550A BMS
Parallel Discharge QS8 Connectors
Free High Power Loom
Power: Ultimate (45Kw)
Range: Very High (4026Kwh 268% Over OEM)
Height: Very Tall (407mm – will need seat lift kit)
Battery Activation Required On Delivery
On delivery, please contact Electron Cycles for activation of your battery.
This will also be regarded as confirmation that your battery has been received.
The
Thor V2
81.4v.
Use the
Hammer
to hit the Power
More Volts,  More RPM, More top speed. Less Field Weakening required. Less heat.  More gearing to play with!
Talaria Battery 81.4v 22s 4026Wh
THOR V2
45Kw. Very similar range and power as the much more expensive Diablo, but taller and heavier. A more cost effective alternative if a touch of height and weight do not really matter.
We wanted to make a slightly more cost effective battery with almost identical performance with only a small sacrifice to range, but a huge price drop of around £300 to he Tor V1 GBP. This Talaria battery is only surpassed by our Molicel P50b batteries The Diablo and Zeus and it is a truly incredible piece of engineering. The build list is like a dream with top secret 21700 60A continiouse individual cell ratings, that actually out perform the highly renowned Molicel P45b. We have been secretly testing these cells for the last 6 months and  are truly confident in their exceptional abilty. We undertsand we are being a little coy in naming our cells, as we simply do not want to be be copied and plagerised again by our competitirs who do not put the time and effort in testing as we do. We have howver recoginsd this may put some customers off, so have increased the cell warranty from 12 months too 18 months. (cells only). Cells are connected by pure copper sheet connections. The Hybrid BMS is an ANT 550 BMS (220A/550A).  The exoskeleton case is made from marine grade stainless steel 316.
Cells
Cells (there are 224 in this battery) all have internal resistance. The more resistance, the more heat they produce, until they start to damage. Our new 21700 cell has a super low (lower then Molicell p45b that it is replacing) internal restistance. The cell is cheaper than the P45b and hence we are trying to bring these savings to you without reducing performance.
Power
Talaria Battery 81.4v 22s 4026Wh
THOR V2
45Kw power as limited by the 550A (peak/burst) by the Ant 550 BMS. A genuine constant power of 17.9Kw (220A non stop)
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.
Domestic Electrics
This means all your bike accessories are still powered. Some believe that not using the circuit breaker direct to the controller removes the safety of the circuit breaker. However, all our batteries have a full working BMS. Any power shorts or irregular current and the BMS shuts down.  This is much more sensitive and accurate than a mechanical breaker (you may note that the Sur Ron Ultra Bee does not use a circuit breaker and relies on the BMS alone).
Fitting
The Talaria Battery 81.4v 22s 4026Wh
THOR V2
45Kw uses two sets of discharge cables. One to fit the original bikes connector (for |Sur Ron we supply an adapter so it can also fit a Talaria too). The second goes to an additional cable that we provide that is fixed direct to the controller. This enables the power to be fed “In Parallel” increasing the electrical flow, reducing resistance and reducing harmful heat. It shares the power delivery and takes the strain away from the original loom. These must be connected in a correct order (simple instructions supplied).
For those using a Torp Controller, Torp do not like direct power to the controller via your second cable.  You can either not use the additional power cable we supply (we do not like to remove these as often buyers transfer batteries to another bike) or, if you are worried about your Torp warranty, you can request one of our 2 into 1 convertors in the checkout notes.  Details of the adapter can be found here:
https://electroncycles.com/product/two-into-one-converter-qs8-supra-d6-talaria-oem-any-combination-available/
Battery Compartment Lids or Lifting Kits
Because of the extra battery height (407mm) minor modification will needed to your bike.
There are several options:
#1
Fit an aftermarket battery compartment lid
found here:
https://electroncycles.com/product/talaria-battery-compartment-injection-moulded-battery-lid-to-fit-taller-batteries-not-3d-printed/
#2
Remove the battery plastic base tray
in the bike (simply remove the 5 small allen key bolts from the top looking down) and fit our 5mm spacer between the metal battery lid catch and the lid (spacers provided)
#3
Seat Lift Kit option:
https://www.electroncycles.co.uk/product/talaria-mx-seat-lift-kit-black-full-e-charged/
Specification Talaria Battery
Weight 19.20KG
Cells Molicel P45b 21700 (242).
BMS set at 550 Amps Peak.  Full battery protection including over discharge (shorts) over heating etc.
Each cell with additional individual wrapping for added protection.
Additional layers of fibre board, Kapton tape, heat shrink.
Stainless steel 316 grade sealed casing/exoskeleton with internal/external powder coated to give maximum protection and insulation.
Pure copper sheet connections.
Bluetooth BMS giving individual series condition with balanced charging (we do not recommend altering our settings as this may invalidate your warranty).
An integrated cord handle for lowering the battery in and out.
Charging port via an XT60 connector.
Height 407mm will need seat lifter
Cell Specification
Typical capacity: 4500mAh
Rated Voltage 3.6 V
Max Discharge current 30A max.
Max Discharge current: 60A with 80C temperature cut off.
Chemistry: Li-ion
Cycle life (100% DOD 25°C): 600 cycles>60% (RT 8A / 30 a)
Operating temperature range( cell surface): charge: 0~55℃
Discharge: -20 ~ 80℃
Diameter: 21.30±0.15 mm
Height: 70.50±0.25
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
Our recommended charger for this battery is:
https://electroncycles.com/product/charger-81v-92-4v-6a/
This Battery will not work with an original standard Talaria Controller

Technical Specifications

BrandTalaria
SKU IdentifierSR-TALARIA-BA-7780
Motor Architecture45Kw
Battery Pack81.4V 76Ah Premium Lithium
Warranty Term2 Years Limited Warranty

5.0

Based on 1 verified rider reviews

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Customer Reviews

Alex
Verified Owner
Oct 05, 2026
Smooth throttle modulation and range

Battery holds charge exceptionally well even in sub-zero morning temperatures. Highly recommend this store.

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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.

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