Estate eMTB
Let’s start with the battery as it is probably the most expensive part that like all batteries goes end-of-life as it has a known limitied number of recharge cycles. After a limited number of recharge ccycles the battery will not hold enough charge to power the eMTB motor effectively.
Battery Details
Reention EEL MINI 36v 10ah battery - this is the battery that is originally supplied with the Estate eMTB
Note: There is a physically larger battery called the Reention EEL PRO and this form factor is too large and does not fit the Estate eMTB. There is also a larger capacity battery than originally supplied with Estate eMTB that fits and it is still 36V but is 14ah up from 10ah
Picked up a 2nd battery the other day for $329 which I thought was a decent price. Here is the link. https://www.kogan.com/au/buy/fortis-275-36v-10ah-hybrid-pro-commuter-electric-mountain-bike-battery-fortis/
In case it helps others I can confirm it charges fine with my existing charger and fits the bike frame well.
The other site that has batteries is https://velectrix.com.au/product-category/accessories-parts/electrical-bike-parts/battery-battery-chargers/
Reention Mini Eel 418 Watt Hour, 36 Volt Battery (single pin charger port) $649.00
Finally, it’s the single pin charger port that is originally supplied with the Estate eMTB that is required for it to work with the original supplied charger(the other option for batteries is a 3 pin charger port plug that does not work with the supplied charger).
Drivetrain Components:
Shimano CS-HG200-8 / 8-speed rear Cassette Sprocket = CS
Shimano Acera rear derailleur
Shimano SL-M315 / Altus Rapidfire Plus 8-speed Shift Lever - right = SL