# New MPPT Calculator cannot do custom parameters!

**URL:** <https://community.victronenergy.com/t/new-mppt-calculator-cannot-do-custom-parameters/1201>\
**Category:** DIY\
**Tags:** mppt\_calculator, mppt\_controllers, victron\_community, diy, feature-request\
**Created:** [26 August 2024 22:33 UTC](https://community.victronenergy.com/t/new-mppt-calculator-cannot-do-custom-parameters/1201 "2024-08-26T22:33:45Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![Ronski](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@Ronski](https://community.victronenergy.com/u/Ronski)\
**Post date:** [17 September 2024 20:02 UTC](https://community.victronenergy.com/t/new-mppt-calculator-cannot-do-custom-parameters/1201/15 "2024-09-17T20:02:21Z")

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You don’t seem to have this panel range JA Solar JAM60D42 505-530, I ordered the 525w version back in May, luckily the old calcultor was still available then.

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_[View the full topic](https://community.victronenergy.com/t/new-mppt-calculator-cannot-do-custom-parameters/1201)._