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HEQ5 as portable mount


  1. Introduction
  2. EQDIRECT from D-sub to RJ45
  3. Power terminal of HEQ5 changed
  4. Installing the 300 mm lens on HEQ5
  5. Rewiring the electric cables
  6. Connecting the Raspberry
  7. Setup GPSD
  8. Setup GPS NMEA
  9. Power consumption
  10. Battery power cables
  11. Tweaking auto guiding parameters
  12. Rowan Belt Modification Kit
  13. Making the tripod to a low rider
  14. Redesign of mount head details
  15. Raspberry Pi4 bracket
  16. Brackets: temperature sensor, spirit level and stepper motor
  17. Transport box
  18. EQDirect cable
  19. Brackets reinforced and adapt it to EQ6
  20. Cut the length of the GPS cable
  21. HEQ5 and TS130 refractor ?
  22. To be continued

Related projects:

  1. HEQ5 as portable mount
  2. Pentax 645 300 mm ED IF f/4 lens
  3. KStars / EKOS and Raspberry Pi4

I take no responsibility or liability for what are written here, you use the information on your own risk!

10: Battery power cables

When out on the field my plan is to use a Lithium LiPoFe4 battery. Before I buy that expensive battery I have to do some test with my old car battery, a Lead Acid car battery at 74 Amph battery and very heavy.

The new cables:

Car battery power cables

The new battery power cable is just a short cable with battery terminals connected and a 2-pole battery connector that I connect to my fuse terminal. Cable area is 2.5 mm2 and on the positive cable I mounted a main fuse, just some extra security if the cable get squeezed and damaged.

Car battery power cables

Battery power cable connected to the fuse box. The two battery terminals are of different size: the positive has a 18 mm hole and the negative has a 16 mm hole.

Later when I tested this old battery I did not get very much energy out from it, it only lasted one hour. The second of my Lead Acid batteries that got destroyed.

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