Need new battery for magicshine
#1
i ride a bicycle
Thread Starter
Join Date: Nov 2006
Posts: 1,021
Likes: 0
Liked 0 Times
in
0 Posts
Need new battery for magicshine
My MS battery has been near-useless for a while, and it's finally dead. It will only charge to ~7.45V, will run the light less than 15min, then protection trips and battery pack V goes to 0.00 (a second or two on the charger will untrip the pack and I measure ~7.15V).
I've been doing my research and see 3 options:
1. Geomangear replacement pack (4.5 / 5.8Ah)
Price: ($82.73 / $102.73 including shipping)
$/Ah: (18.4 / 17.7)
Pros: Probably good quality cells
Cons: Expensive, almost ridiculous
2. Dealextreme battery pack (4.4Ah *claimed*)
Price: $30
$/Ah: 6.8 (again, using claimed Ah)
Pros: least expensive
Cons: DX is well known for over-rated battery capacity claims
3. DIY
Parts:
*Trustfire "true" 2400mAh protected 18650 cells (black and red flame), (DX, $19). I have used these for a while in flashlights and am very satisfied with the quality and value of these cells (and they are true 2450mAh, the ones I've got)
*Luminous DIY 18650 holder ($18.50 shipped)
*MS connector (DX SKU 32753, $3.13)
Price: $41
$/Ah: 8.4
Pros: true 4.8-4.9Ah battery, versatility of removable cells
Cons: hassle of removable cells (separate charging)
Building the DIY pack is not a deterrent to me, I enjoy stuff like that.
Thoughts?
Those of you that have needed to continue using your light, what have you done?
Thanks!
I've been doing my research and see 3 options:
1. Geomangear replacement pack (4.5 / 5.8Ah)
Price: ($82.73 / $102.73 including shipping)
$/Ah: (18.4 / 17.7)
Pros: Probably good quality cells
Cons: Expensive, almost ridiculous
2. Dealextreme battery pack (4.4Ah *claimed*)
Price: $30
$/Ah: 6.8 (again, using claimed Ah)
Pros: least expensive
Cons: DX is well known for over-rated battery capacity claims
3. DIY
Parts:
*Trustfire "true" 2400mAh protected 18650 cells (black and red flame), (DX, $19). I have used these for a while in flashlights and am very satisfied with the quality and value of these cells (and they are true 2450mAh, the ones I've got)
*Luminous DIY 18650 holder ($18.50 shipped)
*MS connector (DX SKU 32753, $3.13)
Price: $41
$/Ah: 8.4
Pros: true 4.8-4.9Ah battery, versatility of removable cells
Cons: hassle of removable cells (separate charging)
Building the DIY pack is not a deterrent to me, I enjoy stuff like that.
Thoughts?
Those of you that have needed to continue using your light, what have you done?
Thanks!
Last edited by sac02; 03-20-11 at 01:11 PM.
#2
Senior Member
Join Date: Jun 2002
Location: Rural Missouri - mostly central and southeastern
Posts: 3,025
Bikes: 2003 LeMond -various other junk bikes
Likes: 0
Liked 50 Times
in
40 Posts
I don't know -whatever tilts your table I guess.
I went the 6/7 AA route, but don't recommend it, I just like having one "alternative power source." This means I can go on a trip with throw away cells as an option - but again, not for regular nightly use......
Best deal is to buy new light set and make a AA cell setup, then you have redundant light heads and alternative power as well......
I went the 6/7 AA route, but don't recommend it, I just like having one "alternative power source." This means I can go on a trip with throw away cells as an option - but again, not for regular nightly use......
Best deal is to buy new light set and make a AA cell setup, then you have redundant light heads and alternative power as well......
#5
i ride a bicycle
Thread Starter
Join Date: Nov 2006
Posts: 1,021
Likes: 0
Liked 0 Times
in
0 Posts
#6
#7
Senior Member
Join Date: Jun 2010
Location: Cleveland-ish, OH
Posts: 306
Likes: 0
Liked 0 Times
in
0 Posts
that ebay ad is for a battery just like mine came with. I'm sort of wondering, though, how difficult it would be to rig up my own, using 8 or more of those *Trustfire "true" 2400mAh protected 18650 cells to get a much longer lived battery. I mean, my loaded commuter bike already weighs a crazy amount, what's another pound and a half to get as much light as I feel like, even for the longest ride I'd consider?
Thread
Thread Starter
Forum
Replies
Last Post
libove
Electronics, Lighting, & Gadgets
18
10-21-15 01:40 PM
trekker pete
Electronics, Lighting, & Gadgets
3
01-17-12 07:45 PM
rangerdavid
Electronics, Lighting, & Gadgets
47
10-28-10 08:45 PM
wstandis
Electronics, Lighting, & Gadgets
4
04-23-10 11:46 AM