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250watt 0.1 ohm Economy Bottom Balancer
250watt 0.1 ohm Economy Bottom Balancer
  • Description
  • Reviews
The economy bottom balancer/hand trimmer. 

When bottom balancing, at the end of the day we are taking out very small amounts of energy from each cell to get it to hit an exact voltage.  This small 250 watt 0.1 ohm power resistor is the perfect thing to manually trim LiFePo4 battery cells.

Just connect this across two terminals while observing cell voltage with a multimeter.  It's low tech but it draws 18-20 amps from a single cell and quickly gets the voltage down to where you want it.

The extra long format helps dissipate heat and the entire rig is very light and portable. Insulated clips make it easy to connect to cells without shorting or sparks. 

2 Product Reviews - Average rating 5 / 5 (Show All)

Worth more than its weight

- 07/04/2015

Exactly as Jack has described. Just that at my end, also abused it for high SOC draining of 27A at 3.4V..down to 17A at the bottom (2.5V). 70°F ambient, the sink does not overheat. 20A fuse did rightfully broke circuit. Removed it and soldered back the 12ga. Running past a hundred hours of draining now yet holding up just fine. Basic, but sturdy.

250watt 0.1 ohm Economy Bottom Balancer

- 12/08/2014

250watt 0.1 ohm Economy Bottom Balancer works great!!!!!!
Jack is as sum!

Price: $78.00
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