newb needs help
#1
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From: Boulder,
CO
i bought a rc18mt lil electric truck
it came with a 1100 mah nimh battery. i also bought a 1400mah as well.
the LHS conned me into buying this charger http://www.horizonhobby.com/Products...ProdID=DYN4044
based on the LHS dudes advice, i charged them both @ 4amps the first time.
the batteries got "warmish hot"
but both ran well, and lasted about 15 mins.
but then i read that i shouldnt be charging these batteries at higher than 1amp, or it could damage them.
so i charged them at 1 amp like, the 3rd charge in. and i worked fine (apparently)
both batteries seemed to lack full power (truck didnt go as fast)
so after they were run down, i tried to charge at 1 amp again.
after like 5 mins, all the lights start flashing like i have it set on the wrong cell count (its 6, checked and rechecked)
and now, no matter what amperage i set the charge rate to (1,2 or 4 amps) all the lights start blinking at least once during a charge, and i have to reset the damn thing.
what am i doing wrong?
did i ruin my batteries by charging them at 4 amps the first time?
is this charger a POS?
what should i do?
it came with a 1100 mah nimh battery. i also bought a 1400mah as well.
the LHS conned me into buying this charger http://www.horizonhobby.com/Products...ProdID=DYN4044
based on the LHS dudes advice, i charged them both @ 4amps the first time.
the batteries got "warmish hot"
but both ran well, and lasted about 15 mins.
but then i read that i shouldnt be charging these batteries at higher than 1amp, or it could damage them.
so i charged them at 1 amp like, the 3rd charge in. and i worked fine (apparently)
both batteries seemed to lack full power (truck didnt go as fast)
so after they were run down, i tried to charge at 1 amp again.
after like 5 mins, all the lights start flashing like i have it set on the wrong cell count (its 6, checked and rechecked)
and now, no matter what amperage i set the charge rate to (1,2 or 4 amps) all the lights start blinking at least once during a charge, and i have to reset the damn thing.
what am i doing wrong?
did i ruin my batteries by charging them at 4 amps the first time?
is this charger a POS?
what should i do?
#3
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From: Orlando,
FL
I've never used that charger, but it looks alright. Too bad it doesn't discharge. The reason it seemed to have more power after the 4amp charge is, because when you charge a battery at a higher rate you get more punch, but less run time. If you had a discharger I would recommend you cycle them a few times and then see what happens. It sounds like your charger may be false peaking. If you know someone with a discharger borrow it so you can cycle your batts and then see what's up.
#4
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From: Newberry, FL
You could have damaged them with the initial 4 amp charge - way too much for Ni-Mh. They should never be charged higher than C rate. Initial charge should have been at C/10 for the first 2 or 3 cycles in order to form the plates properly. The LHS dude owes you a replacement pack.
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From: Newberry, FL
ORIGINAL: MORNINGSTAR
can i run them down all the way and just continue to charge on the 2amp setting?
can i run them down all the way and just continue to charge on the 2amp setting?
#7
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From: Boulder,
CO
this thing just does 1, 2 or 4..... no decimals....
so then 1 amp only?
if i leave it on trickle for awhile will it get all super boosty like it was when i charged it incorrectly?
and
so then 1 amp only?
if i leave it on trickle for awhile will it get all super boosty like it was when i charged it incorrectly?
and
#8
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From: Newberry, FL
ORIGINAL: MORNINGSTAR
this thing just does 1, 2 or 4..... no decimals....
so then 1 amp only?
if i leave it on trickle for awhile will it get all super boosty like it was when i charged it incorrectly?
and
this thing just does 1, 2 or 4..... no decimals....
so then 1 amp only?
if i leave it on trickle for awhile will it get all super boosty like it was when i charged it incorrectly?
and




