# Hardkorr — Bluetooth Connect

> Bluetooth Connect (iPhone/iPad app by Hard Korr Pty Ltd.)

- Source: https://appshunter.io/ios/app/hardkorr/id6741747991 (this page in markdown: same URL + `.md`)
- Developer: [Hard Korr Pty Ltd](https://appshunter.io/developer/1637354677)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 5 MB
- Languages: English
- Released: 2025-10-20
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/hardkorr/id6741747991/reviews.md

## What is Hardkorr?

This free app allows you to view detailed diagnostic information for your Hardkorr Bluetooth-enabled deep cycle batteries. You can access a range of useful information including:
- State of charge
- Nominal voltage and capacity
- Live current draw and battery voltage
- Status (standby, discharging, charging)
- Time to empty / Time to full
- Warnings and errors (short circuit, over- and under-temp, over- and under-voltage, over-discharge, over-charge)
- Total charge cycles
- Temperature
- Detailed cell information

Available on Apple CarPlay

Supported products include:
HKPBATL135B (135Ah Lithium Deep Cycle Battery)
HKPBATL135BH (135Ah Lithium Deep Cycle Battery with Heat Film)
HKPBATL240B (240Ah Lithium Deep Cycle Battery)
HKPBATL240BH (240Ah Lithium Deep Cycle Battery with Heat Film)
HKPBATLSL210 (210Ah Slimline Lithium Deep Cycle Battery)
HKPBATLSL105 (105Ah Slimline Lithium Deep Cycle Battery)
HKPBATL100BS (100Ah Deep Cycle Battery Black Series)
HKPDCDC25BT (25A Bluetooth DC-DC Charger w/MPPT Solar)
HKPDCDC40BT (40A Bluetooth DC-DC Charger w/MPPT Solar)


## Version history (last 5 releases)

### 1.0.10 — 2026-05-03

Squashed a few bugs and added a Demo Mode under the Help menu. This lets you simulate connected devices, so you can explore the app’s functionality without needing a battery or charger.

### 1.0.9 — 2026-03-27

Resolved issue when renaming the new Black Series Batteries would cause the settings icon to disapear.

### 1.0.8 — 2026-02-11

Squashed some bugs and improved battery alerts

### 1.0.7 — 2025-12-02

Added alerts for over charging current on the batteries, to keep your batteries under optimal charge rate.

### 1.0.6 — 2025-11-18

- Added Alerts for batteries:
-- Over current
-- Over temperature

Squashed some bugs.

## Apps similar to Hardkorr

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Possum](https://appshunter.io/ios/app/possum/id1568978514) | — | Free | Utilities |
| [XTRAK](https://appshunter.io/ios/app/xtrak/id1550538625) | — | Free | Utilities |
| [myCOOLMAN](https://appshunter.io/ios/app/mycoolman/id1625025202) | — | Free | Utilities |
| [AllSpark](https://appshunter.io/ios/app/allspark/id6475538866) | — | Free | Utilities |
| [Baintech Lithium Battery App](https://appshunter.io/ios/app/baintech-lithium-battery-app/id6464237907) | — | Free | Utilities |
| [Iris Auto](https://appshunter.io/ios/app/iris-auto/id1477432049) | — | Free | Utilities |

## More apps by Hard Korr Pty Ltd

- [HK Battery](https://appshunter.io/ios/app/hk-battery/id1585479257)
- [Hardkorr Battery Monitor](https://appshunter.io/ios/app/hardkorr-battery-monitor/id1637354675)
- [Hardkorr DC-DC Charger](https://appshunter.io/ios/app/hardkorr-dc-dc-charger/id1658234656)

All apps by Hard Korr Pty Ltd: https://appshunter.io/developer/1637354677

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-15.*