Testing an alkaline and saline disposable battery charger
published: 29/04/07, 09:49
I'm testing a battery charger ... disposable.
Yes, you read that right ... it is not a simple conventional battery charger but an electronic charger allowing the recharging of so-called disposable saline and alkaline batteries.
Apparently recharging a disposable battery is far from a miracle, but the heating due to recharging with a DC charger damaged the battery (which eventually leaked or worse exploded during heating).
The trick of this charger is a controlled impulse charge allowing the recharging of disposable batteries.
The first tests I carried out were rather conclusive:
- recharging of a 9V battery over 5 years old: from 0.0V it went to 10,3V at the end of the charge
- charging of 4 AA panasonic alkaline batteries which went from 0,4 V (approximately) to 1,6 V
- no overheating of the charger, batteries or rechargeable batteries
- fairly quick recharge (3 hours max for the fully discharged 9V battery)
I am a little lacking in old batteries since we are not used to using them ... I now have to test the load resistance of these "recharged disposable batteries" and the number of possible recharges.
For this I bought an anti-ecological product: a Mini MagLite AA which has already emptied 2 batteries (new not recharged) in one night (less than 10 h)
They are decidedly very strong, these Americans for overconsumption ...
Perhaps the ideal would be to plot the discharge curves hour by hour. What do you think? And do you have any ideas to further test the performance of this charger (which will, if the performance follows, quickly offered on the shop for a very democratic price compared to conventional chargers)
ps: this charger charges (and optimizes the lifespan) obviously also the "classic" batteries: NiMh and NiCd
Yes, you read that right ... it is not a simple conventional battery charger but an electronic charger allowing the recharging of so-called disposable saline and alkaline batteries.
Apparently recharging a disposable battery is far from a miracle, but the heating due to recharging with a DC charger damaged the battery (which eventually leaked or worse exploded during heating).
The trick of this charger is a controlled impulse charge allowing the recharging of disposable batteries.
The first tests I carried out were rather conclusive:
- recharging of a 9V battery over 5 years old: from 0.0V it went to 10,3V at the end of the charge
- charging of 4 AA panasonic alkaline batteries which went from 0,4 V (approximately) to 1,6 V
- no overheating of the charger, batteries or rechargeable batteries
- fairly quick recharge (3 hours max for the fully discharged 9V battery)
I am a little lacking in old batteries since we are not used to using them ... I now have to test the load resistance of these "recharged disposable batteries" and the number of possible recharges.
For this I bought an anti-ecological product: a Mini MagLite AA which has already emptied 2 batteries (new not recharged) in one night (less than 10 h)
They are decidedly very strong, these Americans for overconsumption ...
Perhaps the ideal would be to plot the discharge curves hour by hour. What do you think? And do you have any ideas to further test the performance of this charger (which will, if the performance follows, quickly offered on the shop for a very democratic price compared to conventional chargers)
ps: this charger charges (and optimizes the lifespan) obviously also the "classic" batteries: NiMh and NiCd
