I was looking for a 24v battery backup to run my Maxspect Jump gyre 4K but couldn’t find one. I tried 12v from a Belkin 12v DC UPS but it didn’t seem to run the gyre reliably towards the end of the charge (the gyre wouldn’t always actually spin). I decided to make my own DIY option.
It’s very easy and outlined in other places, but I thought a picture would help those wanting to make this.
Parts:
1. Tunze safety connector 6105.500 - this will automatically switch from your native DC power supply that come with the pump to the battery backup $65 USD
2. 2xLiFePO 12V 8Ah batteries - I bought this one since it had included patch wires to save me looking for them $70 CAD each (~$52 USD each)
3. Battery charger capable of 24V and LiFePO compatible () $40 CAD ($30 USD)
Total ~ $200 USD
1. Connect the 2x batteries together in series to get 24v output.
2. Connect the red (+) and black (-) terminals to the Tunze wire harness.
3. Cut off the alligator clips from the battery charger
4. Connect the battery charger wires into the same Tunze wire harness, matching red+black wires
5. Plug the pump’s native AC adapter into the Tunze Safety Connector’s DC input (with AC adapter plugged into the wall outlet as normal).
6. Plug the Tunze’s male DC plug into the circulation pump’s DC input port.
7. Plug the battery charger into the wall.
With this setup, I was able to run my Gyre for about 38 hours in its normal mode with no need to step down the output (I have my Maxspect Gyre 4K set to run in a 30% forward / 50% reverse cycle). I was very happy with the result.
Compared to the $170 USD Icecap backup, I think this is a better option:
- 24V 8 Ah capacity vs 12V 2.5 Ah capacity — I got full normal operation for more than 30 hours.
- 24V output means it works with 24V DC pumps without need for slowing down or a special 12V mode - which many pumps don’t do. Works perfectly with Maxspect Jump Gyre 4K, and tested on my Jebao pumps that refused to even turn on with 12V input.
- If you just need 12V then just buy one battery, save $50 USD.
- easily replace battery size/capacity as needed.
- uses LiFePO batteries which have a much longer life and recharge capacity (claim 10y lifespan, 3000+ charges, lighter weight) vs SLA batteries in premade units.
- downside: it’s ugly and looks like a terrorist bomb kit.
- At least the battery charger gives a visual graphic of battery capacity and charging status.
It’s very easy and outlined in other places, but I thought a picture would help those wanting to make this.
Parts:
1. Tunze safety connector 6105.500 - this will automatically switch from your native DC power supply that come with the pump to the battery backup $65 USD
2. 2xLiFePO 12V 8Ah batteries - I bought this one since it had included patch wires to save me looking for them $70 CAD each (~$52 USD each)
3. Battery charger capable of 24V and LiFePO compatible () $40 CAD ($30 USD)
Total ~ $200 USD
1. Connect the 2x batteries together in series to get 24v output.
2. Connect the red (+) and black (-) terminals to the Tunze wire harness.
3. Cut off the alligator clips from the battery charger
4. Connect the battery charger wires into the same Tunze wire harness, matching red+black wires
5. Plug the pump’s native AC adapter into the Tunze Safety Connector’s DC input (with AC adapter plugged into the wall outlet as normal).
6. Plug the Tunze’s male DC plug into the circulation pump’s DC input port.
7. Plug the battery charger into the wall.
With this setup, I was able to run my Gyre for about 38 hours in its normal mode with no need to step down the output (I have my Maxspect Gyre 4K set to run in a 30% forward / 50% reverse cycle). I was very happy with the result.
Compared to the $170 USD Icecap backup, I think this is a better option:
- 24V 8 Ah capacity vs 12V 2.5 Ah capacity — I got full normal operation for more than 30 hours.
- 24V output means it works with 24V DC pumps without need for slowing down or a special 12V mode - which many pumps don’t do. Works perfectly with Maxspect Jump Gyre 4K, and tested on my Jebao pumps that refused to even turn on with 12V input.
- If you just need 12V then just buy one battery, save $50 USD.
- easily replace battery size/capacity as needed.
- uses LiFePO batteries which have a much longer life and recharge capacity (claim 10y lifespan, 3000+ charges, lighter weight) vs SLA batteries in premade units.
- downside: it’s ugly and looks like a terrorist bomb kit.
- At least the battery charger gives a visual graphic of battery capacity and charging status.
