| Products > Test Equipment |
| An investigation about ripple current of Kunkin KP184 |
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| vehiculeselectriques:
Hello, mine is not functioning normaly, in CC mode 40A to battery load, it does not keep 40A constant current ! it goes immediatly down to 36A and less with minutes passing :( :-// |
| electr_peter:
--- Quote from: vehiculeselectriques on August 23, 2023, 04:27:19 pm ---mine is not functioning normaly, in CC mode 40A to battery load, it does not keep 40A constant current ! it goes immediatly down to 36A and less with minutes passing :( --- End quote --- I have not noticed such behavior yet, my unit was capable to sustain CC load of 40A from car batteries or power supplies. What kind of batteries are you using, can they supply 40A? Are cables/connections sufficient for 40A? Can you check voltage drops across cables and voltage at battery terminals? If high resistance develops in a chain, it may not be possible to reach 40A. |
| vehiculeselectriques:
thanks i'm using voltage drop sense probes mode my lifpo cell is capable of +200A no problem copper wiring is 60cm long 2,5mm2 with Ø8mm ring connectors rated 25A ... will try beefier cable and connectors :-+ |
| Everbrave:
--- Quote from: vehiculeselectriques on August 23, 2023, 04:27:19 pm ---Hello, mine is not functioning normaly, in CC mode 40A to battery load, it does not keep 40A constant current ! it goes immediatly down to 36A and less with minutes passing :( :-// --- End quote --- If you post to the proper thread, you may get better answers; here, it’s about ripple ;) |
| electr_peter:
--- Quote from: vehiculeselectriques on August 24, 2023, 07:50:02 am ---my lifpo cell is capable of +200A no problem copper wiring is 60cm long 2,5mm2 with Ø8mm ring connectors rated 25A ... --- End quote --- Is it a single 3.7V cell? Current wise it could be sufficient, but voltage may be too low after voltage drop in cables and connectors. DC load requires at least ~1-2V at the input terminals to reach full rated 40A. DMM can check this quickly. |
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