GP 17R9H 9V 9.6V 170mAh (Black)

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Official specifications:
GP%2017R9H%209V%209.6V%20170mAh%20(Black)-info

This is a 8 cell NiMH battery.

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GP%2017R9H%209V%209.6V%20170mAh%20(Black)-Capacity

At low load the battery has the specified capacity and it looses some capacity with increasing load, but nothing like a Alkaline battery.
The battery is rated 9.6V and will have higher voltage than a 9V Alkaline.

GP%2017R9H%209V%209.6V%20170mAh%20(Black)-CapacityTime

GP%2017R9H%209V%209.6V%20170mAh%20(Black)-CapacityTimeHours

GP%2017R9H%209V%209.6V%20170mAh%20(Black)-Energy

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Conclusion

The extra cell in the battery means each cell is slightly smaller, i.e. the battery has lower capacity. Instead it has higher voltage.
The battery looks good.



Notes and links

How is the test done and how to read the charts
Compare to other 9V batteries: Alkaline/NiMH/Lithium/other