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Posted: 9/29/2014 6:14:16 PM EDT
Looking at replacing the battery on my FT-60r.  OEM batteries are fairly expensive vs. the Chinese stuff out there.  Found a few with warranties on Ebay.  What's the runtime difference between 1400mah/1650mah/2000mah/2400mah?  Looking for bang for the buck.  1650's are $19, 2000's are $28.  I've seen 2400's, but they are like $70.



Anyone have any hands on experience in the additional runtime with the higher capacity batteries?
Link Posted: 9/29/2014 6:43:37 PM EDT
[#1]
Runtime will highly depend on duty cycle (Receive time vs transmit time). Some radios also have power saving mode. It all depends on how you use the radio.
I would not be scared to buy Chinese made battery packs. Most likely the OEM batteries are made in China or of Chinese components. IMHO the 2000mAh would be a good compromise (price vs capacity).
Link Posted: 9/29/2014 7:21:39 PM EDT
[#2]
Thanks.  I'm just wondering how much of a difference, assuming the same usage/duty cycle, between the different capacities.  For instance, assuming 10% TX and 90% RX, 1400mah = 6hrs, 1650mah = 8 hrs, 2000mah = 10hrs or something.  Guess if no one has the data, I might do this myself at some point.
Link Posted: 9/29/2014 7:45:07 PM EDT
[#3]
Would still love to hear some real world experience on this, but I did find this on the interwebz:








Let’s calculate some
expected operating times for both the standard and alternative Li-ION batteries
using the above current specifications….




Using 5/5/90 standard
usage and stock 1400 mAh battery in 440 MHz band:











TX: ~ 1.6 A
(1600 mA), 3 min.




RX: ~ 0.125 A (125  mA), 3 min.




STBY: ~ .047 A (47 mA), 54 min.




Actual =
1600mA(3/60) + 125mA(3/60) +47mA(54/60)




Actual =
80mA + 6.25mA + 42.3mA




Actual =
128.55mA used in one hour











How long will the
battery last?




1400mAh
available / 128.55mA used = 10.89 hours











How about 50% TX and
50% RX?




Actual =
1600mA(30/60) + 125mA(30/60) =  862.5mA




1400mAh /
862.5mA = ~ 1.6 hours











Using 5/5/90 standard
usage and Li-ION 2300 mAh battery in 440 MHz band:




TX: ~ 1.6 A
(1600 mA), 3 min.




RX: ~ 0.125 A (125  mA), 3 min.




STBY: ~ .047 A (47 mA), 54 min.




Actual =
1600mA(3/60) + 125mA(3/60) +47mA(54/60)




Actual =
80mA + 6.25mA + 42.3mA




Actual =
128.55mA used in one hour











How long will the
battery last?




2300 mAh
available / 128.55mA used = 17.9 hours, ~ 64% more time than standard battery











How about 50% TX and 50%
RX?




Actual =
1600mA(30/60) + 125mA(30/60) =  862.5mA


2300mAh /
862.5mA = ~ 2.7 hours,
~ 69% more time than standard battery








Using that as a template, it appears that the 1650mah battery will yield:  5/5/90: 12.8 hours ~ 18% more time than the standard battery; 50/50: 1.9 hours ~ 20% more time than the standard battery.





And the 2000mah battery would yield: 5/5/90:  15.6 hours ~ 43% more time than the standard battery; 50/50:  2.3 hours ~ 45% more time than the standard battery.

 
Link Posted: 9/29/2014 8:37:11 PM EDT
[#4]
I have a few aftermarket batteries that are made by Maha and are made with their Imedion LSD NiMH cells.  I looked at HRO and didn't see them, so who knows.  You can also try Batteries America.
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